Maruoka Lab, Department of Organocatalyst Chemistry Graduate School of Pharmaceutical Sciences
Publication
2024
- Asymmetric Phase-Transfer Alkylation of Readily Available Aryl Aldehyde Schiff Bases of Amino Acid Ethyl Esters
J. Lu, L. Huang, H. Liang, Z. Wang, T. Kato, Y. Liu, K. Maruoka, Org. Lett. , 26, 4163–4167 (2024).
- Design of Organic Radical Cations as Potent Hydrogen-Atom Transfer Catalysts for C−H Functionalization
A. Matsumoto, K. Maruoka, Asian J. Org. Chem., 13, e202300580 (2024).
- Copper- and Nickel- Catalyzed C–P Coupling Reactions between P(O)–H Compounds and Alkyl Radicals Generated from Alkylsilyl Peroxides
S. Liu, Z. Wang, T. Kato, Y. Liu, K. Maruoka, Arkivoc, 2024, 202312131 (2024).
- Photoredox-Mediated Aerobic Oxidative Cleavage of 1,3-Diketones to Access 1,2-Diketones and (Z)-1,4-Enediones
X. Yu, N. Huang, Y. Huo, X. Li, Y. Liu, K. Maruoka, Q. Chen, Org. Lett., 26, 565–570 (2024).
- Synthetic Utility of Functionalized Alkylsilyl Peroxides for Fe-Catalyzed and Visible-Light-Promoted Radical Transformation
J. Liu, S. Liu, Z. Wang, T. Kato, Y. Liu, K. Maruoka, Chem. Sci, 15, 4757–4762 (2024).
2023
- Design of Y-Shaped Trimers of Chiral Phase-Transfer Catalysts for the Asymmetric Alkylation of Amino Acid Derivatives
S. Yu, J. Liu, Z. Wang, T. Kato, Y. Liu, K. Maruoka, Synlett, 34, 2388-2392 (2023).
- Facile synthesis of 1,2-aminoalcohols via α-C−H aminoalkylation of alcohols by photoinduced hydrogen-atom transfer catalysis
J. Caner, A. Matsumoto, K. Maruoka, Chem. Sci., 14, 13879-13884 (2023).
- Efficient Amide Formation from Non-Activated Cyclopropyl Ester via Acyl Fluoride Generation Using Hypervalent Iodine(III) Reagent and Selectfluor
E.-S. Choi, H.-C. Jeong, Y.-L. Han, H.-J. Lee, K. Maruoka, Asian J. Org. Chem., 12, e202300333 (2023).
- Bidirectional Elongation Strategy Using Ambiphilic Radical Linchpin for Modular Access to 1,4-Dicarbonyls via Sequential Photocatalysis
A. Matsumoto, N. Maeda, K. Maruoka, J. Am. Chem. Soc., 145, 20344-20354 (2023).
(Selected as Inside Cover)
(Highlighted in Org. Process. Res. Dev., 2023, 27, 1827-1840.)
Press release (Japanese only): https://www.kyoto-u.ac.jp/ja/research-news/2023-07-27-0
Preprint version: ChemRxiv [DOI: 10.26434/chemrxiv-2023-6vx14-v2].
- Impact of Catalyst Deuteration on the Reactivity of Chiral Phase-Transfer Organocatalysts
S. Murayama, Z. Li, H. Liang, Y. Liu, H. Naka, K. Maruoka, Chem.–Eur. J., e202301866 (2023).
- Visible-light-promoted alkylation of electron-deficient alkenes with alkylsilyl peroxides
S. Nagano, N. Maeda, T. Kato, A. Matsumoto, K. Maruoka, Tetrahedron Lett., 122, 154486 (2023).
- Synthetic Utility of Alkyl tert-Butyl Peroxides in a Copper-Catalyzed Radical Functionalization
Q. Yang, Z. Wang, T. Kato, Y. Liu, K. Maruoka, Org. Lett., 25, 2958-2963 (2023).
- Recent Asymmetric Phase-Transfer Catalysis with Chiral Binaphthyl-Modified and Related Phase-Transfer Catalysts over the Last 10 Years
H.-J. Lee, K. Maruoka, Chem. Rec., 23, e202200286 (2023).
- p-Methoxybenzyl-Radical-Promoted Chemoselective Protection of sec-Alkylamides
J. Jia, T. Kato, K. Maruoka, J. Org. Chem., 88, 2575-2582 (2023).
- Synthesis of Acyl Fluorides from Carboxylic Acids with KI/AgSCF3 for Efficient Amide and Peptide Synthesis
S. Nagano, K. Maruoka, Adv. Synth. Catal., 365, 295-300 (2023).
2022
- Development of a Catalytic Ester Activation Protocol for the Efficient Formation of Amide Bonds using an Ar−I/HF⋅pyridine/ mCPBA System
H.-J. Lee, E.-S. Choi, K. Maruoka, Asian J. Org. Chem., 11, e202200483 (2022).
- Synthesis of 1,3-Dicarbonyl Compounds Bearing Hetero-Substituted α-Quaternary Carbon via Fe(II)-Catalyzed Alkylation with Alkylsilyl Peroxides
M. Zhou, H. Lu, Z. Wang, T. Kato, Y. Liu, K. Maruoka, Tetrahedron Lett., 110, 154176 (2022).
- Fe-Catalyzed Three-Component Coupling Reaction of α,β,γ,δ-Unsaturated Carbonyl Compounds and Conjugate Dienes with Alkylsilyl Peroxides and Nucleophiles
H. Lu, C. Zhou, Z. Wang, T. Kato, Y. Liu, K. Maruoka, J. Org. Chem., 87, 8824-8834 (2022).
- Synthesis of optically pure, deuterated Maruoka Catalysts and their chemical reactivity
H. Liang, Z. Li, Y. Liu, S. Murayama, H. Naka, K. Maruoka, Tetrahedron Lett., 96, 153753 (2022).
- Fe-Catalyzed Dicarbofunctionalization of Vinylarenes with Alkylsilyl Peroxides and β-Keto Carbonyl Substrates
W. Xu, T. Kato, Y. Liu, A. Matsumoto, K. Maruoka, Org. Lett., 24, 2641-2645 (2022).
- Design of Bifunctional Amino Tf-Amide Organocatalysts and Application in Various Asymmetric Transformations
H.-J. Lee, K. Maruoka, Chem. Rec., 22, e202200004 (2022).
- Cationic DABCO-Based Catalyst for Site-Selective C−H Alkylation via Photoinduced Hydrogen-Atom Transfer
A. Matsumoto, M. Yamamoto, K. Maruoka, ACSCatal. 12, 2045-2051 (2022).
(Among the most read article in February 2022)
(Highlighted in SYNFACTS, 2022, 18, 0423.)
Preprint version: ChemRxiv [DOI: 10.26434/chemrxiv-2021-kp3v9-v2].
- A new approach for the copper-catalyzed functionalization of alkyl hydroperoxides with organosilicon compounds via in-situ-generated alkylsilyl peroxides
W. Zhong, W. Xu, Q. Yang, T. Kato, Y. Liu, K. Maruoka, Tetrahedron, 112, 132627 (2022).
- Selective functionalization of benzylic C–H bonds of two different benzylic ethers by bowl-shaped N-hydroxyimide derivatives as efficient organoradical catalysts
T. Kato, K. Maruoka, Chem. Commun. 58, 1021-1024 (2022).
2021
- Highly Selective Monoalkylation of Active Methylene and Related Derivatives using Alkylsilyl Peroxides by a Catalytic CuI-DMAP System
C. Zhou, J. Lv, W. Xu, H. Lu, T. Kato, Y. Liu, K. Maruoka, Asian J. Org. Chem. 10, 2625-2631 (2021).
- Synthesis of Functionalized Aliphatic Acid Esters via the Generation of Alkyl Radicals from Silylperoxyacetals
A. Matsumoto, Y. Shiozaki, S. Sakurai, K. Maruoka, Chem.–Asian J. 16, 2431-2434 (2021).
(Selected as Very Important Paper)
- Ni-Catalyzed C(sp2)−H alkylation of N-quinolylbenzamide using alkylsilyl peroxides as structurally diverse alkyl sources
S. Tsuzuki, S. Sakurai, A. Matsumoto, T. Kano, K. Maruoka, Chem. Commun. 57, 7942-7945 (2021).
- In-situ-generation of alkylsilyl peroxides from alkyl hydroperoxides and their subsequent copper-catalyzed functionalization with organosilicon compounds
W. Xu, W. Zhong, Q. Yang, T. Kato, Y. Liu, K. Maruoka, Tetrahedron Lett. 75, 153144 (2021).
- Synthesis of alkynyl Z-ketimines and their application in amine-catalyzed asymmetric Mannich reactions and conjugate addition
C. Homma, M, Yamanaka, T. Kano, K. Maruoka, Tetrahedron 91, 132225 (2021).
- Enantioselective Hydrative para-Dearomatization of Sulfonanilides by an Indanol-based Chiral Organoiodine Catalyst
Y. Shimazaki, C. Wata, T. Hashimoto, K. Maruoka, Asian J. Org. Chem. 10, 1638-1642 (2021).
- Radical-Mediated Activation of Esters with a Copper/Selectfluor System: Synthesis of Bulky Amides and Peptides
A. Matsumoto, Z. Wang, K. Maruoka, J. Org. Chem. 86, 5401-5411 (2021).
(Highlighted in SYNFACTS, 2021, 17, 0827.)
(Featured in Organic Chemistry Highlights in Organic Chemistry Portal)
- Remarkable Effect of tert‐Amine Additives in the Asymmetric Direct Michael Reaction of Ketones with β‐Arylnitroethenes Catalyzed by an L‐Hydroxyproline‐Based Amino Tf‐Amide Organocatalyst
H. Lu, J. Lv, C. Zhou, M. Zhou, Y. Fang, J. Dong, T. Kato, Y. Liu, K. Maruoka, Eur. J. Org. Chem. 2021, 1909-1912 (2021).
- The copper-catalyzed selective monoalkylation of active methylene compounds with alkylsilyl peroxides
J. Lv, W. Xu, H. Lu, T. Kato, K. Maruoka, Org. Biomol. Chem. 19, 2658-2662 (2021).
- The Formation of C–C or C–N Bonds via the Copper-Catalyzed Coupling of Alkylsilyl Peroxides and Organosilicon Compounds: A Route to Perfluoroalkylation
W. Xu, Y. Liu, T. Kato, K. Maruoka, Org. Lett. 23, 1809-1813 (2021).
- Bifunctional amino sulfonamide-catalyzed asymmetric conjugate addition to alkenyl alkynyl ketimines as enone surrogates
C. Homma, T. Kano, K. Maruoka, Chem. Commun. 57, 2808-2811 (2021).
- Asymmetric α-Hydroxylation of α-Aryl-δ-lactams with Molecular Oxygen under Phase-Transfer Conditions
T. Inukai, T. Kano, K. Maruoka, Org. Lett. 23, 792-796 (2021).
- Metal-Free Approach for Hindered Amide-Bond Formation with Hypervalent Iodine(III) Reagents: Application to Hindered Peptide Synthesis
H.-J. Lee, X. Huang, S. Sakaki, K. Maruoka, Green Chem. 23, 848-855 (2021).
- Deacylative Carbon–Carbon Bond Cleavage of Ketone Equivalents: Applications to Radical Carbon–Carbon Bond Formation Reactions
A. Matsumoto, B.-N. Nguyen, T. Honda, R. Sakamoto, X. Huang, S. Sakaki, K. Maruoka, Chem.–Asian J. 16, 282-286 (2021).
- Construction of chiral α-tert-amine scaffolds via amine-catalyzed asymmetric Mannich reactions of alkyl-substituted ketimines
C. Homma, A. Takeshima, T. Kano, K. Maruoka, Chem. Sci. 12, 1445-1450 (2021).
- Cu-Catalyzed O-Alkylation of Phenol Derivatives with Alkylsilyl Peroxides
S. Sakurai, T. Kano, K. Maruoka, Chem. Commun. 57, 81-84 (2021).
- Development of New Radical-mediated Selective Reactions Promoted by Hypervalent Iodine(III) Reagents
A. Matsumoto, H.-J. Lee, K. Maruoka, Chem. Rec. 21, 1342-1357 (2021).
- Development of Organosilicon Peroxides as Practical Alkyl Radical Precursors and Their Applications to Transition Metal Catalysis
A. Matsumoto, K. Maruoka, Bull. Chem. Soc. Jpn. 94, 513-524 (2021).
(Selected as Inside Cover)
2020
- Efficient cleavage of tertiary amide bonds via radical–polar crossover using a copper(II) bromide/Selectfluor hybrid system
Z. Wang, A. Matsumoto, K. Maruoka, Chem. Sci. 11, 12323-12328 (2020).
- CuCl2-Mediated Oxidative Intramolecular α-Arylation of Ketones with Phenolic Nucleophiles via Oxy-Allyl Cation Intermediates
T. Mochimatsu, Y. Aota, T. Kano, K. Maruoka, Chem.–Asian J. 15, 3816-3819 (2020).
- Cu-Catalyzed Enantioselective Alkylarylation of Vinylarenes Enabled by Chiral Binaphthyl-BOX Hybrid Ligands
S. Sakurai, A. Matsumoto, T. Kano, K. Maruoka, J. Am. Chem. Soc. 142, 19017-19022 (2020).
(Selected as Supplementary Cover Art)
- Design of Bowl-Shaped N-Hydroxyimide Derivatives as New Organoradical Catalysts for Site-Selective C(sp3)–H Bond Functionalization Reactions
T. Kato, K. Maruoka, Angew. Chem. Int. Ed. 59, 14261-14264 (2020).
(Highlighted in SYNFACTS, 2020, 16, 1212.)
- Synthesis of Electron-Deficient Chiral Biphenols and Their Applications in Catalytic Asymmetric Reactions
K. Yasumoto, T. Kano, K. Maruoka, J. Org. Chem. 85, 10232-10239 (2020).
- N-Hydroxybenzimidazole as a Structurally Modifiable Platform for N-Oxyl Radicals for Direct C–H Functionalization Reactions
T. Yoshii, S. Tsuzuki, S. Sakurai, R. Sakamoto, J. Jiang, M. Hatanaka, A. Matsumoto, K. Maruoka, Chem. Sci. 11, 5772-5778 (2020).
- Development of Ketone-Based Brominating Agents (KBA) for the Practical Asymmetric α-Bromination of Aldehydes Catalyzed by Tritylpyrrolidine
A. Takeshima, M. Shimogaki, T. Kano, K. Maruoka, ACS Catal. 10, 5959-5963 (2020).
- Practical Synthesis of α,β-Alkynyl Ketones by Oxidative Alkynylation of Aldehydes with Hypervalent Alkynyliodine Reagents
S. Tsuzuki, R. Sakamoto, K. Maruoka, Chem. Lett. 49, 633-636 (2020).
- Enantioselective Synthesis of Monosaccharide Analogues by Two-step Sequential Enamine Catalysis: Benzoyloxylation and Aldol Reaction
M. Shimogaki, A. Takeshima, T. Kano, K. Maruoka, Eur. J. Org. Chem. 2020, 2028-2032 (2020).
(Selected as Cover Picture)
- Brønsted Acid-Catalyzed Intramolecular α-Arylation of Ketones with Phenolic Nucleophiles via Oxy-Allyl Cation Intermediates
Y. Aota , Y. Doko, T. Kano, K. Maruoka, Eur. J. Org. Chem. 2020, 1907-1911 (2020).
(Selected as a VIP paper)
- Iron-Catalyzed Radical Cleavage/C–C Bond Formation of Acetal-Derived Alkylsilyl Peroxides
Y. Shiozaki, S. Sakurai, R. Sakamoto, A. Matsumoto, K. Maruoka, Chem.–Asian J. 15, 573-576 (2020).
- Cu-Catalyzed Generation of Alkyl Radicals from Alkylsilyl Peroxides and Subsequent C(sp3)-C(sp2) Cross-Coupling with Arylboronic Acids
S. Sakurai, S. Tsuzuki, R. Sakamoto, K. Maruoka, J. Org. Chem. 85, 3973-3980 (2020).
- Construction of a Quaternary Carbon Center by Catalytic Asymmetric Alkylation of 3-Arylpiperidin-2-ones under Phase-Transfer Conditions
T. Inukai, T. Kano, K. Maruoka, Angew. Chem. Int. Ed. 59, 2211-2214 (2020).
(Selected as Cover Picture)
- Practical Synthesis of High-Performance Amino Tf-Amide Organocatalysts for Asymmetric Aldol Reactions
H. Lu, J. Lv, C. Zhou, T. Kato, Y. Liu, K. Maruoka, Asian J. Org. Chem. 9, 206-209 (2020).
(Selected as Cover Picture)
2019
- Asymmetric Synthesis of Chiral Sulfoximines via the S-Arylation of Sulfinamides
Y. Aota, T. Kano, K. Maruoka, J. Am. Chem. Soc., 141, 19263-19268 (2019).
- Efficient Synthesis of Cyclic Sulfoximines from N-Propargylsulfinamides through Sulfur–Carbon Bond Formation
Y. Aota, Y. Maeda, T. Kano, K. Maruoka, Chem.–Eur. J., 25, 15755-15758 (2019).
- Asymmetric Synthesis of Chiral Sulfoximines through the S-Alkylation of Sulfinamides
Y. Aota, T. Kano, K. Maruoka, Angew. Chem. Int. Ed., 58, 17661-17665 (2019).
- Synthesis of Phenylcyclopropane-Based Secondary Amine Catalysts and Their Applications in Enamine Catalysis
A. Takeshima, T. Kano, K. Maruoka, Org. Lett., 21, 8071-8074 (2019).
- Scalable Synthesis of a Chiral Selenium π-Acid Catalyst and Its Use in Enantioselective Iminolactonization of β,γ-Unsaturated Amides
Y. Otsuka, Y. Shimazaki, H. Nagaoka, K. Maruoka, T. Hashimoto, Synlett, 30, 1679-1682 (2019).
- Synthesis of α-Quaternary Aldehydes via a Stereoselective Semi-Pinacol Rearrangement of Optically Active Epoxy Alcohols
N. Hirama, R. Sakamoto, K. Maruoka, Asian J. Org. Chem., 8, 1390-1393 (2019).
- Asymmetric Synthesis of Chiral 1,4-Enynes through Organocatalytic Alkenylation of Propargyl Alcohols with Trialkenylboroxines
J.-F. Bai, K. Yasumoto, T. Kano, K. Maruoka, Angew. Chem. Int. Ed., 58, 8898-8901 (2019).
- One-Pot Synthesis of Less Accessible N-Boc-Propargylic Amines Through BF3-Catalyzed Alkynylation and Allylation Using Boronic Esters
K. Yasumoto, T. Kano, K. Maruoka, Org. Lett., 21, 3214-3217 (2019).
- Asymmetric Synthesis of α-Amino Acids by Organocatalytic Biomimetic Transamination
Q.-K. Kang, S. Selvakumar, K. Maruoka, Org. Lett., 21, 2294-2297 (2019).
- Synthesis of Functionalized Organoboron/Silicon Compounds by Copper-Catalyzed Coupling of Alkylsilyl Peroxides and Diboron/Silylborane Reagents
T. Seihara, S. Sakurai, T. Kato, R. Sakamoto, K. Maruoka, Org. Lett., 21, 2477-2481 (2019).
- Iodine(III)-Catalyzed Electrophilic Nitration of Phenols via Non-Brønsted Acidic NO2+ Generation
K. A. Juarez-Ornelas, J. O. C. Jimenez-Halla, T. Kato, C. R. Solorio-Alvarado, K. Maruoka, Org. Lett., 21, 1315-1319 (2019).
- Enantioselective Alkynylation of Isatin Derivatives Using a Chiral Phase-Transfer/Transition-Metal Hybrid Catalyst System
S. Paria, H.-J. Lee, K. Maruoka, ACS Catal., 9, 2395-2399 (2019).
- Benzimidazole Tethered Pyrrolo[3,4-b]quinoline with Broad-spectrum Activity Against Fungal Pathogens
P. Villa, N. Arumugam, A. I. Almansour, R. S. Kumar, S. M. Mahalingam, K. Maruoka, S. Thangamani, Bioorg. Med. Chem. Lett., 29, 729-733 (2019).
- Design of New Amino Tf-Amide Organocatalysts: Environmentally Benign Approach to Asymmetric Aldol Synthesis
H.-J. Lee, N. Arumugam, A. I. Almansour, R. S. Kumar, K. Maruoka, Synlett, 30, 401-404 (2019).
- Chemoselective Preparation of 1-Iodoalkyne, 1,2-Diiodoalkene, and 1,1,2-Triiodoalkene Based on the Oxidative Iodination of Terminal Alkyne
Y. Li, D. Huang, J.; Huang, Y. Liu, K. Maruoka, J. Vis. Exp., e58063/1-e58063/11 (2019).
- Generation of Alkyl Radicals from Alkylsilyl Peroxides and Their Applications to C-N or C-O Bond Formations
S. Sakurai, T. Kato, R. Sakamoto, K. Maruoka, Tetrahedron, 75, 172-179 (2019).
- Design of Efficient Chiral Bifunctional Phase-Transfer Catalysts Possessing an Amino Functionality for Asymmetric Aminations
S. Paria, Q. Kang, M. Hatanaka, K. Maruoka, ACS Catal., 9, 78-82 (2019).
2018
- The Radical Acylarylation of N-Arylacrylamides with Aliphatic Aldehydes Using the Photolysis of Hypervalent Iodine(III) Reagents
R. Sakamoto, N. Hirama, K. Maruoka, Org. Biomol. Chem., 16, 5412-5415 (2018).
- Enantioselective Alkylation of N-Arylhydrazones Derived from α-Keto Esters and Isatin Derivatives through Asymmetric Phase-Transfer Catalysis
Q.-K. Kang, S. Selvakumar, N. Arumugam, A. I. Almansour, R. S. Kumar, K. Maruoka, Chemistry–Asian J., 13, 1780-1783 (2018).
- Synthesis of 1-Aminoindenes through Aza-Prins-Type Cyclization
J.-F. Bai, K. Yasumoto, T. Kano, K. Maruoka, Chemistry–Eur. J., 24, 10320-10323 (2018).
-
BF3-Catalyzed Synthesis of Cyclic Carbamates from Boc-Protected Aminals and Alkynes
T. Kano, K. Yasumoto, K. Maruoka, Asian J. Org. Chem., 7, 1575-1578 (2018).
- Phase-transfer-catalysed Asymmetric Synthesis of 2,2-Disubstituted 1,4-Benzoxazin-3-ones
M. Pawliczek, Y. Shimazaki, H. Kimura, K. M. Oberg, S. Zakpur, T. Hashimoto, K. Maruoka, Chem. Commun., 54, 7078-7080 (2018).
- Transition-Metal-Free Direct C-H Silylation of Electron-Deficient Heteroarenes with Hydrosilanes via a Radical Mechanism
R. Sakamoto, B.-N. Nguyen, K. Maruoka, Asian J. Org. Chem., 7, 1085-1088 (2018).
- Practical Synthesis of Four Different Pseudoenantiomeric Organocatalysts with Both Cis- and Trans-Substituted 1,2-Cis-cyclohexanediamine Structures from a Common Intermediate
H.-J. Lee, N. Arumugam, A. I. Almansour, R. S. Kumar, K. Maruoka, Tetrahedoron, 74, 5263-5269 (2018).
- Indanol-Based Chiral Organoiodine Catalysts for Enantioselective Hydrative Dearomatization
T. Hashimoto, Y. Shimazaki, Y. Omatsu, K. Maruoka, Angew. Chem. Int. Ed., 57, 7200-7204 (2018). (Highlighted in SYNFACTS, 2018, 865)
- A Synthetic Route to Sodium α-Aminoalkanesulfinates and Their Application in the Generation of α-Aminoalkyl Radicals for Radical Addition Reactions
R. Sakamoto, T. Yoshii, H. Takada, K. Maruoka, Org. Lett., 20, 2080-2083 (2018).
- Catalyst-Controlled Diastereoselectivity Reversal in the Formation of Dihydropyrans
T. Kano, H. Maruyama, C. Homma, K. Maruoka, Chem. Commun., 54, 3496-3499 (2018).
- Copper-Catalyzed C(sp)-C(sp3) Coupling of Terminal Alkynes with Alkylsilyl Peroxides via a Radical Mechanism
R. Sakamoto, T. Kato, S. Sakurai, K. Maruoka, Org. Lett., 20, 1400-1403 (2018).
- Alkylative Kinetic Resolution of Vicinal Diols under Phase-Transfer Conditions: A Chiral Ammonium Borinate Catalysis
M. Pawliczek, T. Hashimoto, K. Maruoka, Chem. Sci., 9, 1231-1235 (2018).
- Chiral Amine-Catalyzed Asymmetric Conjugate Addition of Aldehydes to α-Phenylselenoenones as Formal Z-Allylating Agents
T. Kano, H. Maruyama, C. Homma, K. Maruoka, Chem. Commun., 54, 176-179 (2018).
2017
- Asymmetric Synthesis of Less Accessible α-Tertiary Amines from Alkynyl Z-Ketimines
T. Kano, Y. Aota, K. Maruoka, Angew. Chem. Int. Ed., 56, 16293-16296 (2017). (Highlighted in SYNFACTS, 2018, 185)
- Synthesis of Chiral Tritylpyrrolidine Derivatives and Their Application to Asymmetric Benzoyloxylation
M. Shimogaki, H. Maruyama, S. Tsuji, C. Homma, T. Kano, K. Maruoka, J. Org. Chem., 82, 12928-12932 (2017).
- The Direct C-H Difluoromethylation of Heteroarenes Based on the Photolysis of Hypervalent Iodine(III) Reagents That Contain Difluoroacetoxy Ligands
R. Sakamoto, H. Kashiwagi, K. Maruoka, Org. Lett., 19, 5126-5129 (2017).
- Hypervalent Iodine(III) Catalyzed Radical Hydroacylation of Chiral Alkylidenemalonates with Aliphatic Aldehydes under Photolysis
S. Selvakumar, Q.-K. Kang, N. Arumugam, A. I. Almansour, R. S. Kumar, K. Maruoka, Tetrahedron, 73, 5841-5846 (2017).
- Hypervalent Iodine Mediated Chemoselective Iodination of Alkynes
Y. Liu, D. Huang, J. Huang, K. Maruoka, J. Org. Chem., 82, 11865-11871 (2017).
- In-Situ Generation of N-Boc-Protected Alkenyl Imines: Controlling the E/Z Geometry of Alkenyl Moieties in the Mukaiyama-Mannich Reaction
J.-F. Bai, H. Sasagawa, T. Yurino, T. Kano, K. Maruoka, Chem. Commun., 53, 8203-8206 (2017).
- Catalyst-Controlled, Enantioselective and Diastereodivergent Conjugate Addition of Aldehydes to Electron-Deficient Olefins
S. B. J. Kan, H. Maruyama, M. Akakura, T. Kano, K. Maruoka, Angew. Chem. Int. Ed., 56, 9487-9491 (2017). (Highlighted in SYNFACTS, 2017, 985)
- Alkylsilyl Peroxides as Alkylating Agents in the Copper-Catalyzed Selective Mono-N-Alkylation of Primary Amides and Arylamines
R. Sakamoto, S. Sakurai, K. Maruoka, Chem. Eur. J., 23, 9030-9033 (2017).
- Practical Synthesis of Two Different Pseudoenantiomeric Organocatalysts with cis-Cyclohexanediamine Structure from a Common Chiral Source
H.-J. Lee, S. A. Moteki, N. Arumugam, A. I. Almansour, R. S. Kumar, Y. Liu, K. Maruoka, Asian J. Org. Chem., 6, 1226-1230 (2017).
- Bis(trialkylsilyl) Peroxides as Alkylating Agents in the Copper-Catalyzed Selective Mono-N-Alkylation of Primary Amides
R. Sakamoto, S. Sakurai, K. Maruoka, Chem. Commun., 53, 6484-6487 (2017).
- In situ Generation of less Accessible Boc-Imines from Aldehydes: Construction of a Quaternary Carbon by the Mannich Reaction or Unprecedented Aldol Reaction
T. Kano, C. Homma, K. Maruoka, Org. Biomol. Chem., 15, 4527-4530 (2017). (Highlighted in SYNFACTS, 2017, 873)
- Practical Synthesis of Both Enantiomeric Amino Acid, Mannich, and Aldol Derivatives by Asymmetric Organocatalysis
Y. Liu, N. Arumugam, A. I. Almansour, R. S. Kumar, K. Maruoka, Chem. Rec., 17, 1059-1069 (2017).
- Phase-Transfer Catalyzed Asymmetric Synthesis of α,β-Unsaturated γ,γ-Disubstituted γ-Lactams
A. Arlt, H. Toyama, K. Takada, T. Hashimoto, K. Maruoka, Chem. Commun., 53, 4779-4782 (2017).
- Chiral Tertiary Sulfonium Salts as Effective Catalysts for Asymmetric Base-Free
Neutral Phase-Transfer Reactions
S. Liu, K. Maruoka, S. Shirakawa, Angew. Chem. Int. Ed., 56, 4819-4823 (2017).
- A New Strategy for Organocatalyzed Asymmetric Synthesis of BINOL Derivatives
S. Shirakawa, K. Maruoka, Chem, 2, 329-331 (2017).
-
Hydrogen-Bonding Catalysis of Sulfonium Salts
S. Kaneko, Y. Kumatabara, S. Shimizu, K. Maruoka, S. Shirakawa, Chem. Commun., 53, 119-122 (2017).
- Synthesis of the Right-Side Structure of Type B Physalins
M. Morita, S. Kojima, M. Ohkubo, H. Koshino, D. Hashizume, G. Hirai, K. Maruoka, M. Sodeoka, Isr. J. Chem., 57, 309-318 (2017).
2016
- [2+2] Photocycloadditions between the Carbon-Nitrogen Double Bonds of Imines and Carbon-Carbon Double Bonds
R. Sakamoto, T. Inada, S. Sakurai, K. Maruoka, Org. Lett., 18, 6252-6255 (2016). (Highlighted in SYNFACTS, 2017, 240)
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Rate Acceleration of Solid-Liquid Phase-Transfer Catalysis by Rotor-Stator Homogenizer
T. Kano, Y. Aota, K. Maruoka, Adv. Synth. Catal., 358, 2996-2999 (2016).
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Design of Bifunctional Quaternary Phosphonium Salt Catalysts for CO2 Fixation Reaction with Epoxides under Mild Conditions
S. Liu, N. Suematsu, K. Maruoka, S. Shirakawa, Green Chem., 18, 4611-4615 (2016).
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Hydrogen-Bonding Catalysis of Tetraalkylammonium Salts in an Aza-Diels-Alder Reaction
Y. Kumatabara, S. Kaneko, S. Nakata, S. Shirakawa, K. Maruoka, Chem. Asian J., 11, 2126-2129 (2016).
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Efficient Generation of Perfluoroalkyl Radicals from Sodium Perfluoroalkanesulfinates and a Hypervalent Iodine(III) Reagent: Mild, Metal-free Synthesis of Perfluoroalkylated Organic Molecules
R. Sakamoto, H. Kashiwagi, S. Selvakumar, S. A. Moteki, K. Maruoka, Org. Biomol. Chem., 14, 6417-6421 (2016).
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A Bulky Thiyl-Radical Catalyst for the [3+2] Cyclization of N-Tosyl Vinylaziridines and Alkenes
T. Hashimoto, K. Takino, K. Hato, K. Maruoka, Angew. Chem. Int. Ed., 55, 8081-8085 (2016).
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N-Boc-Aminals as Easily Accessible Precursors for Less Accessible N-Boc-Imines: Facile Synthesis of Optically Active Propargylamine Derivatives Using Mannich-Type Reactions
T. Yurino, Y. Aota, D. Asakawa, T. Kano, K. Maruoka, Tetrahedron, 72, 3687-3700 (2016).
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A Chiral Electrophilic Selenium Catalyst for Highly Enantioselective Oxidative Cyclization
Y. Kawamata, T. Hashimoto, K. Maruoka, J. Am. Chem. Soc., 138, 5206-5209 (2016).
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Diastereoselective Radical Hydroacylation of Alkylidenemalonates with Aliphatic Aldehydes Initiated by Photolysis of Hypervalent Iodine(III) Reagents
S. Selvakumar, R. Sakamoto, K. Maruoka, Chem. Eur. J., 22, 6552-6555 (2016).
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Synthesis of N-Boc-Propargylic and Allylic Amines by Reaction of Organomagnesium Reagents with N-Boc-Aminals and Their Oxidation to N-Boc-Ketimines
T. Kano, R. Kobayashi, K. Maruoka, Org. Lett., 18, 276-279 (2016). (Highlighted in SYNFACTS, 2016, 292)
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Efficient Photolytic C–H Bond Functionalization of Alkylbenzene with Hypervalent Iodine(III) Reagentv
R. Sakamoto, T. Inada, S. Selvakumar, S. A. Moteki, K. Maruoka, Chem. Commun., 52, 3758-3761 (2016).
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Catalytic Asymmetric Synthesis of Axially Chiral 2-Amino-1,10-Biaryl Compounds by Phase-Transfer-Catalyzed Kinetic Resolution and Desymmetrization
S. Shirakawa, X. Wu, S. Liu, K. Maruoka, Tetrahedron, 72, 5163-5171 (2016).
2015
- Boronic Acid-Catalyzed, Highly Enantioselective Aza-Michael Additions of Hydroxamic Acid to Quinone Imine Ketals.
T. Hashimoto, A. O. Galvez, K. Maruoka, J. Am. Chem. Soc., 137, 16016-16019 (2015).
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Tetraalkylammonium Salts as Hydrogen-Bonding Catalysts.
S. Shirakawa, S. Liu, S. Kaneko, Y. Kumatabara, A. Fukuda, Y. Omagari, K. Maruoka, Angew. Chem. Int. Ed., 54, 15767-15770 (2015).
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Brønsted Acid-Catalyzed Mannich Reaction through Dual Activation of Aldehydes and N-Boc-imines.
T. Kano, Y. Aota, D. Asakawa, K. Maruoka, Chem. Commun., 51, 16472-16474 (2015).
(Selected as Cover Picture)
- Mechanism of Metal-Free C-H Activation of Branched Aldehydes and Acylation of Alkenes Using Hypervalent Iodine Compound: A Theoretical Study.
J. Jiang, R. Ramozzi, S. A. Moteki, A. Usui, K. Maruoka, K. Morokuma, J. Org. Chem., 80, 9264-9271 (2015).
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Regio- and Stereoselective Conjugate Addition of Aldehydes to β-Tosyl Enones under the Catalysis of a Binaphthyl-Modified Chiral Amine.
T. Kano, H. Sugimoto, H. Maruyama, K. Maruoka, Angew. Chem. Int. Ed., 54, 8462-8465 (2015). (Highlighted in SYNFACTS, 2015, 986)
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Versatile In Situ Generated N-Boc-Imines: Application to Phase-Transfer-Catalyzed Asymmetric Mannich-Type Reactions.
T. Kano, R. Kobayashi, K. Maruoka, Angew. Chem. Int. Ed., 54, 8471-8474 (2015). (Highlighted in SYNFACTS, 2015, 987)
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Regioselectivity Switch in Chiral Amine-Catalyzed Asymmetric Addition of Aldehydes to Reactive Enals.
T. Kano, H. Maruyama, R. Sakamoto, K. Maruoka, Chem. Commun., 51, 10062-10065 (2015).
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Recent Advances of Catalytic Asymmetric 1,3-Dipolar Cycloadditions.
T. Hashimoto, K. Maruoka, Chem. Rev., 115, 5366-5412 (2015).
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Positive Effect of Water in Asymmetric Direct Aldol Reactions with Primary Amine Organocatalyst: Experimental and Computational Studies.
S. A. Moteki, H. Maruyama, K. Nakayama, H.-B. Li, G. Petrova, S. Maeda, K. Morokuma, K. Maruoka, Chem. Asian J., 10, 2112-2116 (2015).
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Catalytic Asymmetric Diels-Alder Reaction of Quinone Imine Ketals: A Site-Divergent Approach.
T. Hashimoto, H. Nakatsu, K. Maruoka, Angew. Chem. Int. Ed., 54, 4617-4621 (2015).
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Phase-Transfer-Catalyzed Asymmetric Desymmetrizations of Cyclopentanones.
S. Shirakawa, T. Tokuda, S. B. J. Kan, K. Maruoka, Org. Chem. Front., 2, 336-339 (2015).
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Phase-Transfer-Catalyzed Asymmetric SNAr Reaction of α-Amino Acid Derivatives with Arene Chromium Complexes.
S. Shirakawa, K. Yamamoto, K. Maruoka, Angew. Chem. Int. Ed., 54, 838-840 (2015).
2014
- A Practical Approach for the Oxidation of Unactivated Csp3-H Bonds with o-Nitro(Diacetoxyiodo)Benzene as an Efficient Hypervalent Iodine(III)-Based Oxidizing Agent.
S. A. Moteki, S. Sermadurai, T. Zhang, A. Usui, K. Maruoka, Asian J. Org. Chem., 3, 932 (2014).
(Selected as Cover Picture)
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Metal-Free C-H Bond Activation of Branched Aldehydes with Hypervalent Iodine(III) Catalyst under Visible-Light Photolysis: Successful Trapping with Electron-Deficient Olefins.
S. A. Moteki, A. Usui, S. Sermadurai, T. Zhang, K. Maruoka, Angew. Chem. Int. Ed., 53,11060 (2014). (Very Important Papers)
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An Organic Thiyl Radical Catalyst for Enantioselective Cyclization.
T. Hashimoto, Y. Kawamata, K. Maruoka, Nat. Chem., 6, 702 (2014).
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Efficient Asymmetric Synthesis of Spiro-2(3H)-Furanones via Phase-Transfer-Catalyzed Alkynylation.
X. Wu, S. Shirakawa, K. Maruoka, Org. Biomol. Chem., 12, 5388 (2014).
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Effect of Bronsted Acid Co-Catalyst in Asymmetric Conjugate Addition of 3-Aryloxindoles to Maleimide under Base-Free Phase-Transfer Conditions.
S. Shirakawa, H. Makino, T. Yoshidome, K. Maruoka, Tetrahedron, 70, 7128 (2014).
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Design and Synthesis of a Biphenyl-based Chiral Amino Sulfonamide with High Catalytic Performance in Mannich Reactions.
T. Kano, H. Maruyama, K. Akiyama, K. Maruoka, Tetrahedron Lett., 55, 4227 (2014).
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Asymmetric Phase-Transfer Reactions under Base-Free Neutral Conditions.
S. Shirakawa, K. Maruoka, Tetrahedron Lett., 55, 3833 (2014).
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Catalytic Asymmetric Synthesis of 3,3'-Diaryloxindoles as Triarylmethanes with a Chiral All-Carbon Quaternary Center: Phase-Transfer-Catalyzed SNAr Reaction.
S. Shirakawa, K. Koga, T. Tokuda, K. Yamamoto, K. Maruoka, Angew. Chem. Int. Ed., 53,6220 (2014).
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Catalytic Asymmetric Alkylation of 3-Aryl-Substituted Oxindoles to give 3,3-Disubstituted Oxindoles under Phase-Transfer Conditions.
F. Deng, S. A. Moteki, K. Maruoka, Asian J. Org. Chem., 3, 395 (2014).
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Phase-Transfer-Catalyzed Asymmetric α-Arylation of α-Amino Acid Derivatives.
S. Shirakawa, K. Yamamoto, T. Tokuda, K. Maruoka, Asian J. Org. Chem., 3, 433 (2014).
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A Metal-Free Golden Age.
K. Maruoka, Asian J. Org. Chem., 3, 319 (2014).
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A Base-Free Neutral Phase-Transfer Reaction System.
S. Shirakawa, L. Wang, R. He, S. Arimitsu, K. Maruoka, Chem. Asian J., 9, 1586 (2014).
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Asymmetric Phase-Transfer Catalysis with Homo- and Heterochiral Quaternary Ammonium Salts: A Theoretical Study.
G. P. Petrova, H.-B. Li, K. Maruoka, K. Morokuma, J. Phys. Chem. B, 118, 5154 (2014).
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Synthesis of 3-Mono-Substituted Binaphthyl-Based Secondary Amine Catalysts via Monobromination of an Axially Chiral Dicarboxylic Acid Derivative.
T. Kano, M. Takeda, R. Sakamoto, K. Maruoka, J. Org. Chem., 79, 4240 (2014).
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Catalytic Enantioselective Intramolecular Cyclization of N-aryl Diazoamides Using a Titanium-BINOLate Complex.
T. Hashimoto, K. Yamamoto, K. Maruoka, Chem. Commun. (Cambridge) 50, 3220 (2014).
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Practical Approach for Asymmetric Hydroxyamination of Aldehydes with in Situ Generated Nitrosocarbonyl Compounds: Application to One-Pot Synthesis of Chiral Allylamines.
T. Kano, F. Shirozu, K. Maruoka, Org. Lett., 16, 1530 (2014).
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Amine-Catalyzed Asymmetric Cross-Aldol Reactions Using Heterofunctionalized Acetaldehydes as Nucleophiles.
T. Kano, R. Sakamoto, K. Maruoka, Org. Lett., 16, 944-947 (2014).
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Chiral Brønsted Acid-catalyzed Enantioselective Addition of Indoles to Ketimines.
T. Kano, R. Takechi, R. Kobayashi, K. Maruoka, Org. Biomol. Chem., 12, 724-727 (2014). (Most Downloaded Articles)
(Selected as Cover Picture)
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Remote Chirality Control Based on the Organocatalytic Asymmetric Mannich Reaction of α-Thio Acetaldehydes.
T. Kano, R. Sakamoto, K. Maruoka, Chem. Commun., 50, 942-944 (2014). (Most Downloaded Articles)
2013
- Development of Synthetic Transformations by Control of Acid-catalyzed Reactions of Diazocarbonyl Compounds.
T. Hashimoto, K. Maruoka, Bull. Chem. Soc. Jpn., 86, 1217-1230 (2013).
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Chiral Organotin Hydride Catalyzed Enantioselective Radical Cyclization of Aldehydes.
S. Shirakawa, A. Usui, S. B. J. Kan, K. Maruoka, Asian J. Org. Chem., 2, 916-919 (2013).
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Kinetic Resolution of Axially Chiral 2-Amino-1,1'-Biaryls by Phase-Transfer-Catalyzed N-Allylation.
S. Shirakawa, X. Wu, K. Maruoka, Angew. Chem. Int. Ed., 52, 14200-14203 (2013).
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Metal-Free Enantioselective Hydroxyamination of Aldehydes with Nitrosocarbonyl Compounds Catalyzed by an Axially Chiral Amine.
T. Kano, F. Shirozu, K. Maruoka, J. Am. Chem. Soc., 135, 18036-18039 (2013). (Highlighted inSYNFACTS, 207 (2014))
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In Situ Assembled Boronate Ester Assisted Chiral Carboxylic Acid Catalyzed Asymmetric Trans-Aziridinations.
T. Hashimoto, A. O. Galvez, K. Maruoka, J. Am Chem. Soc., 135, 17667-17670 (2013). (Highlighted inSYNFACTS, 202 (2014))
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Reactions Triggered by Lewis Acidic Organoaluminum Species.
Y. Naganawa, K. Maruoka, Top. Organomet. Chem., 41, 187-214 (2013).
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Axially Chiral Dicarboxylic Acid Catalyzed Activation of Quinone Imine Ketals: Enantioselective Arylation of Enecarbamates.
T. Hashimoto, H. Nakatsu, Y. Takiguchi, K. Maruoka, J. Am. Chem. Soc., 135, 16010-16013 (2013).
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Phase-Transfer-Catalyzed Asymmetric Synthesis of Axially Chiral Anilides.
K. Liu, X. Wu, S. B. J. Kan, S. Shirakawa, K. Maruoka, Chem. Asian J., 8, 3214-3221 (2013).
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Organocatalytic Asymmetric Synthesis of Propargylamines with Two Adjacent Stereocenters: Mannich-Type Reactions of In Situ Generated C-Alkynyl Imines with β-Keto Esters.
T. Kano, T. Yurino, K. Maruoka, Angew. Chem. Int. Ed., 52, 11509-11512 (2013). (Highlighted inSYNFACTS, 1233 (2013))
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Production at the Curie Level of No-carrier-added 6-18F-fluoro-L-dopa.
L. C. Libert, X. Franci, A. R. Plenevaux, T. Ooi, K. Maruoka, A. J. Luxen, C. F. Lemaire, J. Nucl. Med., 54, 1154-1161 (2013).
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Catalytic Asymmetric Three-component 1,3-Dipolar Cycloaddition of Aldehydes, Hydrazides, and Alkynes.
T. Hashimoto, Y. Takiguchi, K. Maruoka, J. Am. Chem. Soc., 135, 11473-11476 (2013). (Highlighted inSYNFACTS, 1049 (2013))
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Site-Selective Oxidation of Unactivated C(sp3)-H Bonds with Hypervalent Iodine(III) Reagents.
S. A. Moteki, A. Usui, T. Zhang, C. R. Solorio-Alvarado, K. Maruoka, Angew. Chem. Int. Ed., 52, 8657-8660 (2013). (Selected as a VIP)
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Contribution of Cage-Shaped Structure of Physalins to Their Mode of Action in Inhibition of NF-κB Activation.
M. Ozawa, M. Morita, G. Hirai, S. Tamura, M. Kawai, A. Tsuchiya, K. Oonuma, K. Maruoka, M. Sodeoka, ACS Med. Chem. Lett., 4, 730-735 (2013).
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Unusual anti-Selective Asymmetric Conjugate Addition of Aldehydes to Nitroalkenes Catalyzed by a Biphenyl-based Chiral Secondary Amine.
T. Kano, H. Sugimoto, O. Tokuda, K. Maruoka, Chem. Commun., 49, 7028-7030 (2013).
(Selected as Cover Picture)
- Design of Chiral Bifunctional Quaternary Phosphonium Bromide Catalysts Possessing an Amide Moiety.
S. Shirakawa, T. Tokuda, A. Kasai, K. Maruoka, Org. Lett., 15, 3350-3353 (2013).
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Development of Axially Chiral Dicarboxyiic Acta Catalyzed Asymmetric Transformations.
T. Hashimoto, K. Maruoka, Yuki Gosei Kagaku Kyokaishi, 71, 472-479 (2013).
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Construction of a Chiral Quaternary Carbon Center by Catalytic Asymmetric Alkylation of 2-Arylcyclohexanones under Phase-Transfer Conditions.
T. Kano, Y. Hayashi, K. Maruoka, J. Am. Chem. Soc., 135, 7134-7137 (2013). (Most Read Articles)(Highlighted in SYNFACTS, 900 (2013))
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Acid-Catalyzed in Situ Generation of Less Accessible or Unprecedented N-Boc Imines from N-Boc Aminals.
T. Kano, T. Yurino, D. Asakawa, K. Maruoka, Angew. Chem. Int. Ed., 52, 5532-5534 (2013). (Highlighted in SYNFACTS, 790 (2013))
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Efficient Approach for the Design of Effective Chiral Quaternary Phosphonium Salts in Asymmetric Conjugate Additions.
S. Shirakawa, A. Kasai, T. Tokuda, K. Maruoka, Chem. Sci., 4, 2248-2252 (2013).
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Phase-Transfer-Catalyzed Asymmetric Conjugate Cyanation of Alkylidenemalonates with KCN in the Presence of a Bronsted Acid Additive.
Y. Liu, S. Shirakawa, K. Maruoka, Org. Lett., 15, 1230-1233 (2013). (Highlighted in SYNFACTS, 553 (2013))
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Phase-transfer Catalyzed Asymmetric Synthesis of Tetrasubstituted Allenes.
T. Hashimoto, K. Sakata, F. Tamakuni, M. J. Dutton, K. Maruoka, Nature Chem., 5, 240-244 (2013).
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Recent Developments in Asymmetric Phase-Transfer Reactions.
S. Shirakawa, K. Maruoka, Angew. Chem. Int. Ed., 52, 4312-4348 (2013).
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Unique Properties of Chiral Biaryl-Based Secondary Amine Catalysts for Asymmetric Enamine Catalysis.
T. Kano, K. Maruoka, Chem. Sci., 4, 907-915 (2013). (Most Downloaded Articles)
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One-Pot Cross Double-Mannich Reaction of Acetaldehyde Catalyzed by a Binaphthyl-Based Amino Sulfonamide.
T. Kano, R. Sakamoto, Y. Yamaguchi, K. Itoh, K. Maruoka, Chem. Comm., 49, 1118-1120 (2013). (Most Downloaded Articles)
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Stereoselective Synthesis of Cyclic Amino Acids via Asymmetric Phase-Transfer Catalytic Alkylation.
T. Kano, T. Kumano, R. Sakamoto, K. Maruoka, Org. Biomol. Chem., 11, 271-278 (2013).
(Most Downloaded Articles)(Selected as Cover Picture)
2012
- Asymmetric Phase-Transfer Catalysis.
S. Shirakawa, S. A. Moteki, K. Maruoka, Modern Tools for the Synthesis of Complex Bioactive Molecules, 213-242 (2012).
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Catalytic Asymmetric Synthesis of 3-Substituted Proline Derivatives by Using Phase-Transfer-Catalyzed Conjugate Addition.
Y. Liu, A. Usui, S. Shirakawa, K. Maruoka, Asian. J. Org. Chem., 1, 180-186 (2012).
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In Situ Preparation of Chiral Bifunctional Catalysts and their Application to Asymmetric Michael Addition Reactions.
S. A. Moteki, P. G. Kirira, S. Arimitsu, K. Maruoka, Asian J. Org. Chem. 1, 26-29, (2012).
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Powerful Amino Diol Catalyst for Effecting the Direct Asymmetric Conjugate Addition of Aldehydes to Acrylates.
T. Kano, F. Shirozu, M. Akakura, K. Maruoka, J. Am. Chem. Soc., 134, 16068 (2012). (Highlighted in SYNFACTS, 1261 (2012))
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Designer Chiral Phase-transfer Catalysts for Green Sustainable Chemistry.
K. Maruoka, Pure and Appl. Chem., 84, 1575 (2012).
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The Direct Catalytic Asymmetric Aldol Reaction of α-Substituted Nitroacetates with Aqueous Formaldehyde under Base-free Neutral Phase-transfer Conditions.
S. Shirakawa, K. Ota, S. J. Terao, K. Maruoka, Org. Biomol. Chem., 10, 5753 (2012).
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Axially Chiral Dicarboxylic Acid Catalyzed Asymmetric Semipinacol Rearrangement of Cyclic β-Hydroxy-α-diazo Esters.
T. Hashimoto, S. Isobe, C. K. A. Callens, K. Maruoka, Tetrahedron, 68, 7630 (2012).
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Molecular Recognition of Ketomalonates by Asymmetric Aldol Reaction of Aldehydes with Secondary-amine Organocatalysts.
T. Kano, S. Song, K. Maruoka, Chem. CommunV., 48, 7037 (2012).
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A Catalytic Asymmetric Ugi-type Reaction With Acyclic Azomethine Imines.
T. Hashimoto, H. Kimura, Y. Kawamata, K. Maruoka, Angew. Chem. Int. Ed., 51, 7279 (2012).
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Kinetically Controlled One-Pot Formation of DEFGH-Rings of Type B Physalins through Domino-Type Transformations.
M. Morita, G. Hirai, M. Ohkubo, H. Koshino, D. Hashizume, K. Maruoka, M. Sodeoka, Org. Lett., 14, 3434 (2012).
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New Neutral Reaction System with Crown Ether-KCl Complexes in Aqueous Solution.
S. Shirakawa, L. Wang, A. Kasai, K. Maruoka, Chem.-Eur. J., 18, 8588 (2012).
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New Chiral Phase-transfer Catalysts Possessing a 6,6'-Bridged Ring on the Biphenyl Unit: Application to the Synthesis of α,α-Dialkyl-α-amino Acids.
Y. Kubota, S. Shirakawa, T. Inoue, K. Maruoka, Tetrahedron Lett., 53, 3739 (2012).
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Stereocontrolled Synthesis of Vicinal Diamines by Organocatalytic Asymmetric Mannich Reaction of N-Protected Aminoacetaldehydes: Formal Synthesis of (-)-Agelastatin A.
T. Kano, R. Sakamoto, M. Akakura, K. Maruoka, J. Am. Chem. Soc ., 134, 7516 (2012). (Most Read Articles)
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Efficient Asymmetric Synthesis of a Bicyclic Amino Acid as a Core Structure of Telaprevir.
S. Shirakawa, Y. Liu, A. Usui, K. Maruoka, ChemCatChem., 4, 980 (2012).
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Asymmetric Phase-transfer Reactions Pproceeded under Neutral Conditions: Feasibility of a Reaction System Closer to In-vivo Reaction System.
S. Shirakawa, K. Maruoka, Kagaku, 67, 18 (2012).
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Catalytic Asymmetric Synthesis of Axially Chiral o-Iodoanilides by Phase-Transfer Catalyzed Alkylations.
S. Shirakawa, K. Liu, K. Maruoka, J. Am. Chem. Soc., 134, 916 (2012).
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An Achiral-Acid-Induced Switch in the Enantioselectivity of a Chiral cis-Diamine-Based Organocatalyst for Asymmetric Aldol and Mannich Reactions.
S. A. Moteki, J. Han, S. Arimitsu, M. Akakura, K. Nakayama, K. Maruoka, Angew. Chem. Int. Ed., 51, 1187 (2012).
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Highly Diastereo- and Enantioselective Mannich Reactions of Synthetically Flexible Ketimines with Secondary Amine Organocatalysts.
T. Kano, S. Song, Y. Kubota, K. Maruoka, Angew. Chem. Int. Ed., 51, 1191 (2012).
2011
- Catalytic asymmetric synthesis of isoxazoline-N-oxides through conjugate addition-cyclization under phase-transfer conditions.
T. Kano, A. Yamamoto, S. Song, K. Maruoka, Bull. Chem. Soc. Jpn. 84, 1057 (2011). (Selected Paper)(Top Accessed Articles)
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Phase-transfer-catalyzed Asymmetric Alkylation with Epoxy Triflates as Alkylating Agents: Highly Stereoselective Synthesis of γ,δ-Epoxy-α-amino Acids.
S. Arimitsu, D. Kato, K. Maruoka, Chem. Lett., 40, 1115 (2011).
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The First Example of the Direct Asymmetric Conjugate Addition of Aldehydes to a Methylenemalonate Promoted by an Axially Chiral Amino Diol Catalyst.
T. Kano, F. Shirozu, K. Tatsumi, Y. Kubota, K. Maruoka, Chem. Sci., 2, 2311 (2011).
(Most Downloaded Articles)(Selected as Cover Picture)
- Efficient Organocatalytic Cross-Aldol Reaction between Aliphatic Aldehydes through Their Functional Differentiation.
T. Kano, H. Sugimoto, K. Maruoka, J. Am. Chem. Soc., 133, 18130 (2011). (Highlighted in SYNFACTS, 217 (2012))
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Phase-Transfer-Catalyzed Asymmetric Synthesis of 1,1-Disubstituted Tetrahydroisoquinolines.
S. Shirakawa, K. Liu, H. Ito, T. N. Le, K. Maruoka, Adv. Synth. Catal., 353, 2614 (2011).
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syn-Selective Asymmetric Cross-aldol Reactions between Aldehydes and Glyoxylic Acid Derivatives Catalyzed By an Axially Chiral Amino Sulfonamide.
T. Kano, A. Noishiki, R. Sakamoto, K. Maruoka, Chem. Commun., 10626 (2011).
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Diastereo- and Enantioselective Conjugate Addition of α-Substituted Nitroacetates to Maleimides under Base-free Neutral Phase-transfer Conditions.
S. Shirakawa, S. J. Terao, R. He, K. Maruoka, Chem. Commun., 10557 (2011).
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Catalytic Asymmetric Alkynylation of C1-Substituted C,N-Cyclic Azomethine Imines by CuI/Chiral Brønsted Acid Co-Catalyst.
V
T. Hashimoto, M. Omote, K. Maruoka, Angew. Chem. Int. Ed., 50, 8952 (2011).
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Modular Synthesis of Axially Chiral 3,3'-Disilyl Dicarboxylic Acids by Silalactones.
T. Hashimoto, T. Takagaki, H. Kimura, K. Maruoka, Chem. Asian J., 6, 1936 (2011).
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Generation and Exploitation of Acyclic Azomethine Imines in Chiral Brønsted Acid Catalysis.
T. Hashimoto, H. Kimura, Y. Kawamata, K. Maruoka, Nature ChemV., 3, 642 (2011).
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Synthetic Application and Structural Elucidation of Axially Chiral Dicarboxylic Acid: Asymmetric Mannich-type Reaction with Diazoacetate, (Diazomethyl)phosphonate, and (Diazomethyl)sulfone.
T. Hashimoto, H. Kimura, H. Nakatsu, K. Maruoka, J. Org. Chem., 76, 6030 (2011).
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Chiral Brønsted Acid-Catalyzed Asymmetric Trisubstituted Aziridine Synthesis Using α-Diazoacyl Oxazolidinones.
T. Hashimoto, H. Nakatsu, K. Yamamoto, K. Maruoka, J. Am. Chem. Soc.,133, 9730 (2011).
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Asymmetric Neutral Amination of Nitroolefins Catalyzed by Chiral Bifunctional Ammonium Salts in Water-Rich Biphasic Solvent.
L. Wang, S. Shirakawa, K. Maruoka, Angew. Chem. Int. Ed., 50, 5327 (2011).
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Desymmetrizing Asymmetric Ring Expansion of Cyclohexanones with α-Diazoacetates Catalyzed by Chiral Aluminum Lewis Acid.
T. Hashimoto, Y. Naganawa, K. Maruoka, J. Am. Chem. Soc.,133, 8834 (2011).
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Asymmetric Inverse-Electron-Demand 1,3-Dipolar Cycloaddition of C,N-Cyclic Azomethine Imines: An Umpolung Strategy.
T. Hashimoto, M. Omote, K. Maruoka, Angew. Chem. Int. Ed., 50, 3489 (2011).
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Development of a Practical Synthetic Method for N-tert-Butoxycarbonyl α-Ketimino Esters.
T. Hashimoto, K. Yamamoto, K. Maruoka, Chem. Lett., 40, 326 (2011).
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Catalytic asymmetric syntheses of isoxazoline-N-oxides under phase-transfer conditions.
T. Kano, A. Yamamoto, S. Song, K. Maruoka, Chem. Commun.,4358 (2011).
(Selected as Cover Picture)
- Asymmetric Trisubstituted Aziridination of Aldimines and Ketimines using N-α-Diazoacyl Camphorsultams.
T. Hashimoto, H. Nakatsu, K. Yamamoto, S. Watanabe, K. Maruoka, Chem. Asian J., 6, 607 (2011).
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Catalytic Asymmetric Synthesis of 1,1-Disubstituted Tetrahydro-β-carbolines by Phase-transfer Catalyzed Alkylations.
S. Shirakawa, K. Liu, H. Ito, K. Maruoka, Chem. Commun., 1515 (2011). (Highlighted in SYNFACTS, 210 (2011))
2010
- Development of Highly Selective Organic Reactions Catalyzed by Designed Amine Organocatalysts.
T. Kano, K. Maruoka, Bull. Chem. Soc. Jp., 83, 1421 (2010).
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Catalytic Asymmetric Synthesis of Cyclic Amino Acids and Alkaloid Derivatives: Application to (+)-Dihydropinidine and Selfotel Synthesis.
T. Kano, T. Kumano, R. Sakamoto, K. Maruoka, Chem. Sci., 499 (2010).
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Design of Structurally Rigid trans-Diamine-Based Tf-Amide Organocatalysts with a Dihydroanthracene Framework for Asymmetric Conjugate Additions of Heterosubstituted Aldehydes to Vinyl Sulfones.
S. A. Moteki, S. Xu, S. Arimitsu, K. Maruoka, J. Am. Chem. Soc., 132, 17074 (2010). (Highlighted in SYNFACTS, 216 (2011))
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Efficient Synthesis of Alkaloids Using Chiral Phase Transfer Catalysts.
K. Maruoka, Shokubai (触媒), 52, 480 (2010).
-
Highly Practical Amino Acid and Alkaloid Synthesis Using Designer Chiral Phase Transfer Catalysts as High-performance Organocatalysts.
K. Maruoka, Chem. Rec., 10, 254 (2010).
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Direct Asymmetric Bromination of Aldehydes Catalyzed by a Binaphthyl-based Secondary Amine: Highly Enantio- and Diastereoselective One-pot Synthesis of Bromohydrins.
T. Kano, F. Shirozu, K. Maruoka, Chem. Commun., 7590 (2010).
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Development of 5-Silylethynyl-1,3-dioxolan-4-one as a New Prochiral Template for Asymmetric Phase-transfer Catalysis.
T. Hashimoto, K. Fukumoto, N. Abe, K. Sakata, K. Maruoka, Chem. Commun., 7593 (2010).
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Enantioselective Formal Alkenylations of Imines Catalyzed by Axially Chiral Dicarboxylic Acid Using Vinylogous Aza-Enamines.
T. Hashimoto, H. Kimura, K. Maruoka, Angew. Chem., Int. Ed., 49, 6844 (2010). (Highlighted in SYNFACTS, 1307 (2010))
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Metal-Free Direct Asymmetric Aminoxylation of Aldehydes Catalyzed by a Binaphthyl-Based Chiral Amine.
T. Kano, H. Mii, K. Maruoka, Angew. Chem.,Int. Ed., 49, 6638 (2010). (Highlighted in SYNFACTS, 1192 (2010))
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Desymmetrizing Asymmetric Ring Expansion: Stereoselective Synthesis of 7-Membered Cyclic β-Keto Carbonyl Compounds with an α-Hydrogen.
T. Hashimoto, Y. Naganawa, K. Maruoka, Chem. Commun., 6810 (2010). (Highlighted in SYNFACTS, 1265 (2010))
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Axially Chiral Dicarboxylic Acid-Catalyzed Asymmetric Imino Aza-enamine Reaction/oxidation as a Strecker Reaction Surrogate.
T. Hashimoto, H. Kimura, K. Maruoka, Tetrahedron: Asymmetry, 21, 1187 (2010).
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Catalytic Enantioselective 1,3-Dipolar Cycloaddition of C,N-Cyclic Azomethine Imines with α,β-Unsaturated Adehydes. [Erratum to document cited in CA152:405618].
T. Hashimoto, Y. Maeda, M. Omote, H. Nakatsu, K. Maruoka, J. Am. Chem. Soc., 132, 11824 (2010).
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Phase-Transfer-Catalyzed Olefin Isomerization/α-Alkylation of α-Alkynylcrotonates as a Route for 1,4-Enynes.
T. Hashimoto, K. Sakata, K. Maruoka, Adv. Synth. Catal., 352, 1653 (2010).
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Catalytic Asymmetric Synthesis of Cyclic α-Alkyl-amino Acid Derivatives by C,N-Double Alkylation.
T. Kano, R. Sakamoto, H. Mii, Y.-G. Wang, K. Maruoka, Tetrahedron, 66, 4900 (2010). (Highlighted in SYNFACTS, 479 (2010))
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Phase-transfer-catalyzed Asymmetric Alkylation of α-Benzoyloxy-β-keto Esters: Stereoselective Construction of Congested 2,3-Dihydroxycarboxylic Acid Esters.
T. Hashimoto, K. Sasaki, K. Fukumoto, Y. Murase, N. Abe, T. Ooi, K. Maruoka, Chem. Asian J., 5, 562 (2010).
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Stereoselective Synthesis of Trisubstituted Aziridines with N-α-Diazoacyl Camphorsultam.
T. Hashimoto, H. Nakatsu, S. Watanabe, K. Maruoka, Org. Lett., 12, 1668 (2010).
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Catalytic Enantioselective 1,3-Dipolar Cycloaddition of C,N-Cyclic Azomethine Imines with α,β-Unsaturated Aldehydes.
T. Hashimoto, Y. Maeda, M. Omote, H. Nakatsu, K. Maruoka, J. Am. Chem. Soc., 132, 4076 (2010). (Highlighted in SYNFACTS, 681 (2010))
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Phase-Transfer Catalyzed Asymmetric Conjugate Additions of β-Ketoesters to Acetylenic Ketones.
Q. Lan, X. Wang, S. Shirakawa, K. Maruoka, Org. Process Res. Dev., 14, 684 (2010).
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Chiral Bifunctional Phase Transfer Catalysts for Asymmetric Fluorination of β-Keto Esters.
X. Wang, Q. Lan, S. Shirakawa, K. Maruoka, Chem. Commun., 321 (2010).
2009
- Enantioselective Base-Free Phase-Transfer Reaction in Water-Rich Solvent.
R. He, S. Shirakawa, K. Maruoka, J. Am. Chem. Soc., 131, 16620 (2009). (Highlighted in SYNFACTS, 106 (2010))
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Design of Sophisticated Bidentate Lewis Acids and Organocatalysts for Fine Organic Synthesis.
K. Maruoka, Bull. Chem. Soc. Jpn., 82, 917 (2009).
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Al Lewis Acid-catalyzed Regiodivergent 1,2-Rearrangement of
α-Siloxy Aldehydes: Scope and Mechanism.
K. Ohmatsu, T. Tanaka, T. Ooi, K. Maruoka, Tetrahedron, 65, 7516 (2009).
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Binaphthyl-modified Quaternary Phosphonium Salts as Chiral Phase Transfer Catalysts: Application to Asymmetric Amination of β-Keto Esters.
R. He, K. Maruoka, Synthesis, 2289 (2009).
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Stereoselective Synthesis of α-Alkyl-β-keto Imides via Asymmetric Redox C-C Bond Formation between α-Alkyl-α-diazocarbonyl Compounds and Aldehydes.
T. Hashimoto, H. Miyamoto, Y. Naganawa, K. Maruoka, J. Am. Chem. Soc., 131, 11280 (2009). (Highlighted in SYNFACTS, 1247 (2009))
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Catalytic Asymmetric Synthesis of Ccyclic α-Alkyl-amino Acid Derivatives Having a Tetrasubstituted α-Carbon.
Y.-G. Wang, H. Mii, T. Kano, K. Maruoka, Bioorg. Med. Chem. Lett., 19, 3795 (2009). (Most Read Articles)
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A Designer Axially Chiral Amino Sulfonamide as an Efficient Organocatalyst for Direct Asymmetric anti-Selective Mannich Reactions and syn-Selective Cross-Aldol Reactions.
T. Kano, Y. Yamaguchi, K. Maruoka, Chem. Eur. J., 15, 6678 (2009).
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α-Chiral Acetylenes Having an All-Carbon Quaternary Center: Phase Transfer Catalyzed Enantioselective α-Alkylation of α-Alkyl-α-alkynyl Esters.
T. Hashimoto, K. Sakata, K. Maruoka, Angew. Chem., Int. Ed., 48, 5014 (2009).
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Phosphonium Salts as Chiral Phase-Transfer Catalysts: Asymmetric Michael and Mannich Reactions of 3-Aryloxindoles.
R. He, C. Ding, K. Maruoka, Angew. Chem., Int. Ed., 48, 4559 (2009).
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Enantioselectivity Switch in Direct Asymmetric Aminoxylation Catalyzed by Binaphthyl-based Chiral Secondary Amines.
T. Kano, A. Yamamoto, F. Shirozu, K. Maruoka, Synthesis, 1557 (2009). (Highlighted in SYNFACTS, 799 (2009))
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Highly Efficient Asymmetric Amination of β-Keto Esters Catalyzed by Chiral Quaternary Ammonium Bromides.
Q. Lan, X. Wang, R. He, K. Maruoka, Tetrahedron Lett., 50, 3280 (2009).
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Organocatalyzed Direct Asymmetric α-Halogenation of Carbonyl Compounds.
M. Ueda, T. Kano, K. Maruoka, Org. Biomol. Chem., 7, 2005 (2009).
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Stereoselective Construction of Seven-Membered Rings with an All-Carbon Quaternary Center by Direct Tiffeneau-Demjanov-type Ring Expansion.
T. Hashimoto, Y. Naganawa, K. Maruoka, J. Am. Chem. Soc., 131, 6614 (2009). (Highlighted in SYNFACTS, 758 (2009))
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Rate Enhancement of Phase Transfer Catalyzed Conjugate Additions by CsCl.
T. Kano, T. Kumano, K. Maruoka, Org. Lett., 11, 2023 (2009).
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Organocatalytic Approach to Enantioselective One-pot Synthesis of Pyrrolidine, Hexahydropyrrolizine, and Octahydroindolizine Core Structures.
Y.-G. Wang, T. Kumano, T. Kano, K. Maruoka, Org. Lett., 11, 2027 (2009). (Most Read Articles) (Highlighted in SYNFACTS, 678 (2009))
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Enantioselective Alkylation of α-Fluoro-β-keto Esters by Asymmetric Phase-transfer Catalysis.
C. Ding, K. Maruoka, Synlett,664 (2009).
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Phase-transfer-catalyzed Enantioselective Alkylation of α-Benzoyloxy-β-keto Ester.
T. Hashimoto, K. Sasaki, K. Fukumoto, Y. Murase, T. Ooi, K. Maruoka, Synlett,661 (2009).
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Catalytic Enantioselective Construction of All-carbon Quaternary Stereocenters by an Organocatalytic Diels-Alder Reaction of α-Substituted α,β-Unsaturated Aldehydes.
T. Kano, Y. Tanaka, K. Osawa, T. Yurino, K. Maruoka, Chem. Commun., 1956 (2009).
(Selected as Cover Picture) (Highlighted in SYNFACTS, 450 (2009))
- A Designer Axially Chiral Amino Sulfonamide as an Efficient Organocatalyst for Direct Asymmetric Mannich Reactions of N-Boc-protected Imines.
T. Kano, Y. Yamaguchi, K. Maruoka, Angew. Chem., Int. Ed., 48, 1838 (2009). (Highlighted in SYNFACTS, 446 (2009))
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Direct Asymmetric Benzoyloxylation of Aldehydes Catalyzed by 2-Tritylpyrrolidine.
T. Kano, H. Mii, K. Maruoka,J. Am. Chem. Soc., 131, 3450 (2009). (Most Read Articles) (Highlighted in SYNFACTS, 566 (2009))
2008
- Design of an Axially Chiral Dicarboxylic Acid and Its Application in Syntheses of Optically Active β-Amino Acids and β-Amino Phosphonic Acid Derivatives.
T. Hashimoto, K. Maruoka, Synthesis, 3703 (2008).
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Binaphthyl-modified Quaternary Phosphonium Salts as Chiral Phase-transfer Catalysts: Asymmetric Amination of β-Keto Esters.
R. He, X. Wang, T. Hashimoto, K. Maruoka, Angew. Chem., Int. Ed., 47, 9466 (2008). (Highlighted in SYNFACTS, 98 (2009))
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Complete Switch of Product Selectivity in Asymmetric Direct Aldol Reaction with Two Different Chiral Organocatalysts from a Common Chiral Source.
K. Nakayama, K. Maruoka, J. Am. Chem. Soc., 130, 17666 (2008). (Highlighted in SYNFACTS, 206 (2009))
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Design of Chiral Bifunctional Secondary Amine Catalysts for Asymmetric Enamine Catalysis.
T. Kano, K. Maruoka, Chem. Commun.,5465 (2008).
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Trans-Selective Asymmetric Aziridination of Diazoacetamides and N-Boc Imines Catalyzed by Axially Chiral Dicarboxylic Acid.
T. Hashimoto, N. Uchiyama, K. Maruoka, J. Am. Chem. Soc., 130, 14380 (2008). (Highlighted in SYNFACTS, 18 (2009))
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Combinatorial Design of Simplified High-performance Chiral Phase-transfer Catalysts for Practical Asymmetric Synthesis of α-Alkyl- and α,α-Dialkyl-α-amino Acids.
M. Kitamura, S. Shirakawa, Y. Arimura, X. Wang, K. Maruoka, Chem. Asian J., 3, 1702 (2008).
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Facile Synthesis of Structurally Diverse 3,3'-Disubstituted 1,1'-Binaphthyl-2,2'-diamines in Optically Pure Forms.
T. Kano, Y. Tanaka, K. Osawa, T. Yurino, K. Maruoka, J. Org. Chem., 73, 7387 (2008).
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Practical Asymmetric Synthesis of α-Methylserine Derivatives under Mild Phase-Transfer Conditions.
K. Nakayama, K. Maruoka, Tetrahedron Lett., 49, 5461 (2008).
-
Direct Asymmetric Aminoxylation Reaction Catalyzed by a Binaphthyl-based Chiral Amino Sulfonamide with High Catalytic Performance.
T. Kano, A. Yamamoto, K. Maruoka, Tetrahedron Lett., 49, 5369 (2008).
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Complete Switch of Migratory Aptitude in Aluminum-catalyzed 1,2-Rearrangement of Differently α,α-Disubstituted α-Siloxy Aldehydes.
K. Ohmatsu, T. Tanaka, T. Ooi, K. Maruoka, Angew. Chem., Int. Ed., 47, 5203 (2008). (Highlighted in SYNFACTS, 981 (2008))
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6,6'-Substituent Effect of BINOL in Bis-titanium Chiral Lewis Acid Catalyzed 1,3-Dipolar Cycloaddition of Nitrones.
T. Hashimoto, M. Omote, K. Maruoka, Org. Biomol. Chem., 6, 2263 (2008).
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Practical Aspects of Recent Asymmetric Phase-Transfer Catalysis.
K. Maruoka, Org. Process Res. Dev., 12, 679 (2008).
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Asymmetric Imino Aza-enamine Reaction Catalyzed by Axially Chiral Dicarboxylic Acid: Use of Arylaldehyde N,N-Dialkylhydrazones as Acyl Anion Equivalent.
T. Hashimoto, M. Hirose, K. Maruoka, J. Am. Chem. Soc., 130, 7556 (2008). (Highlighted in SYNFACTS, 877 (2008))
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Asymmetric 1,3-Dipolar Cycloadditions of N-Benzyl and
N-Diphenylmethyl Nitrones and α,β-Unsaturated Aldehydes Catalyzed by Bis-titanium Chiral Lewis Acids.
T. Hashimoto, M. Omote, Y. Hato, T. Kano, K. Maruoka, Chem. Asian J., 3, 407 (2008).
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Direct Asymmetric Aminoxylation Reaction Catalyzed by Axially Chiral Amino Acids.
T. Kano, A. Yamamoto, H. Mii, J. Takai, S. Shirakawa, K. Maruoka, Chem. Lett., 37, 250 (2008).
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Direct Asymmetric Iodination of Aldehydes Using an Axially Chiral Bifunctional Amino Alcohol Catalyst.
T. Kano, M. Ueda, K. Maruoka, J. Am. Chem. Soc., 130, 3728 (2008). (Highlighted in SYNFACTS, 643 (2008))
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Combinatorial Approach for the Design of New, Simplified Chiral Phase-transfer Catalysts with High Catalytic Performance for Practical Asymmetric Synthesis of α-Alkyl-α-amino Acids.
M. Kitamura, Y. Arimura, S. Shirakawa, K. Maruoka, Tetrahedron Lett., 49, 2026 (2008).
-
Syntheses of Manzacidins: a Stage for the Demonstration of Synthetic Methodologies.
T. Hashimoto, K. Maruoka, Org. Biomol. Chem., 6, 829 (2008).
-
Bronsted Acid-Catalyzed Insertion of Aryldiazoacetates to sp2 Carbon-CHO Bond: Facile Construction of Chiral All-Carbon Quaternary Center.
T. Hashimoto, Y. Naganawa, K. Maruoka, J. Am. Chem. Soc., 130, 2434 (2008).
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anti-Selective Direct Asymmetric Mannich Reactions Catalyzed by Chiral Pyrrolidine-Based Amino Sulfonamides.
T. Kano, Y. Hato, A. Yamamoto, K. Maruoka, Tetrahedron, 64, 1197 (2008).
2007
- Recent Development and Application of Chiral Phase-Transfer Catalysts
T. Hashimoto, K. Maruoka, Chem. Rev., 5656 (2007).
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Construction of Stereodefined 1,1,2,2-Tetrasubstituted Cyclopropanes by Acid Catalyzed Reaction of Aryldiazoacetates and α-Substituted Acroleins
T. Hashimoto, Y. Naganawa, T. Kano, K. Maruoka, Chem. Commun., 5143 (2007).
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Design of Binaphthyl-modified Symmetrical Chiral Phase-transfer Catalysts: Substituent Effect of 4,4',6,6'-Positions of Binaphthyl Rings in the Asymmetric Alkylation of a Glycine Derivative
S. Shirakawa, M. Ueda, Y. Tanaka, T. Hashimoto, K. Maruoka, Chem. Asian J., 2, 1276 (2007).
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Asymmetric 1,3-Dipolar Cycloadditions of Nitrones and Methacrolein Catalyzed by Chiral Bis-Titanium Lewis Acid: A Dramatic Effect of N-Substituent on Nitrone
T. Hashimoto, M. Omote, T. Kano, K. Maruoka, Org. Lett., 9, 4805 (2007).
-
exo-Selective Asymmetric Diels-Alder Reaction Catalyzed by Diamine Salts as Organocatalysts
T. Kano, Y. Tanaka, K. Maruoka, Chem. Asian J., 2, 1161 (2007).
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Practical Stereoselective Synthesis of β-Branched α-Amino Acids through Efficient Kinetic Resolution in the Phase-Transfer-Catalyzed Asymmetric Alkylations
T. Ooi, D. Kato, K. Inamura, K. Ohmatsu, K. Maruoka, Org. Lett., 9, 3945 (2007).
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Design of Axially Chiral Dicarboxylic Acid for Asymmetric Mannich Reaction of Arylaldehyde N-Boc Imines and Diazo Compounds
T. Hashimoto, K. Maruoka, J. Am. Chem. Soc., 129, 10054 (2007). (Highlighted in SYNFACTS, 1102 (2007))
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Asymmetric Organocatalytic Oxy-Michael Addition of Alcohols to α,β-Unsaturated Aldehydes
T. Kano, Y. Tanaka, K. Maruoka, Tetrahedron, 63, 8658 (2007).
-
Recent Advances in Asymmetric Phase-transfer Catalysis
T. Ooi, K. Maruoka, Angew. Chem., Int. Ed., 46, 4222 (2007).
-
Asymmetric Conjugate Additions of α-Substituted α-Cyanoacetates to Acetylenic Ketones by Chiral Phase Transfer Catalysis
Q. Lan, X. Wang, K. Maruoka, Tetrahedron Lett., 48, 4675 (2007).
-
Convenient Preparation of Chiral Phase-transfer Catalysts with Conformationally Fixed Biphenyl Core for Catalytic Asymmetric Synthesis of α-Alkyl- and α,α-Dialkyl-α-Amino Acids: Application to the Short Asymmetric Synthesis of BIRT-377
Y.-G. Wang, M. Ueda, X. Wang, Z. Han, K. Maruoka, Tetrahedron, 63, 6042 (2007).
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Effects of Aromatic Substituents on Binaphthyl-based Chiral Spiro-type Ammonium Salts in Asymmetric Phase-transfer Reactions
T. Kano, Q. Lan, X. Wang and K. Maruoka, Adv. Synth. Catal., 349, 556 (2007).
-
syn-Selective and Enantioselective Direct Cross-aldol Reactions between Aldehydes Catalyzed by an Axially Chiral Amino Sulfonamide
T. Kano, Y. Yamaguchi, Y. Tanaka and K. Maruoka, Angew. Chem., Int. Ed., 46, 1738 (2007). (Highlighted as SYNFACTS of the month in SYNFACTS, 429 (2007)) (Highlighted in SYNFORM, A6 (2007))
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Design of Chiral Organocatalysts for Practical Asymmetric Synthesis of Amino Acid Derivatives
K. Maruoka, T. Ooi and T. Kano, Chem. Commun., 1487 (2007).
-
Design of Chiral Phase Transfer Catalyst with Conformationally Fixed Biphenyl Core: Application to Asymmetric Alkylation of Glycine Derivatives
Y.-G. Wang, K. Maruoka, Org. Proc. Res. Dev., 11, 628 (2007).
-
Catalytic Asymmetric Rearrangement of α,α-Disubstituted α-Siloxy Aldehydes to Optically Active Acyloins Using Axially Chiral Organoaluminum Lewis Acids
T. Ooi, K. Ohmatsu and K. Maruoka, J. Am. Chem. Soc., 129, 2410 (2007). (Highlighted in SYNFACTS, 2007, 624)
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Advantage of in situ generation of N-arylsulfonyl imines from α-amide sulfones in the phase-transfer-catalyzed asymmetric Strecker reaction
T. Ooi, Y. Uematsu, J. Fujimoto, K. Fukumoto and K. Maruoka, Tetrahedron Lett., 48, 1337 (2007).
-
New, Chiral Phase Transfer Catalysts for Effecting Asymmetric Conjugate Additions of α-Alkyl-α-Cyanoacetates to Acetylenic Esters
X. Wang, M. Kitamura and K. Maruoka, J. Am. Chem. Soc., 129, 1038 (2007).
2006
- Highly Diastereo- and Enantioselective Formal Conjugate Addition of Nitroalkanes to Nitroalkenes by Chiral Ammonium Bifluoride Catalysis
T. Ooi, S. Takada, K. Doda and K. Maruoka, Angew. Chem., Int. Ed., 45, 7606 (2006).
-
Design of a C2-Symmetric Chiral Pyrrolidine-based Amino Sulfonamide: Application to anti-Selective Direct Asymmetric Mannich Reactions
T. Kano, Y. Hato and K. Maruoka, Tetrahedron Lett., 47, 8467 (2006).
-
Asymmetric Phase-transfer Catalysis of Homo- and Heterochiral Quaternary Ammonium Salts: Development and Application of Conformationally Flexible Chiral Phase-transfer Catalysts
T. Ooi, Y. Uematsu, M. Kameda and K. Maruoka, Tetrahedron, 62, 11425 (2006).
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Design of Environmentally-benign Chiral Organocatalysts for Practical Asymmetric Synthetic of Useful Amino Acids
K. Maruoka, Fain Kemikaru, 35, 35 (2006).
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Synthesis of a Biphenyl-based Axially Chiral Amino Acid as a Highly Efficient Catalyst for the Direct Asymmetric Aldol Reaction
T. Kano, O. Tokuda and K. Maruoka, Tetrahedron Lett., 47, 7423 (2006).
-
Design of a Binaphthyl-based Axially Chiral Amino Acid as an Organocatalyst for Direct Asymmetric Aldol Reactions
T. Kano, O. Tokuda, J. Takai and K. Maruoka, Chem.-Asian J., 1, 210 (2006).
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Asymmetric Synthesis of α-Acyl-γ-butyrolactones Possessing All-carbon Quaternary Stereocenters by Phase-transfer-catalyzed Alkylation
T. Ooi, T. Miki, K. Fukumoto and K. Maruoka, Adv Synth. Catal., 348, 1539 (2006). (Highlighted in SYNFACTS, 1173 (2006))
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Construction of Enantiomerically Enriched Tertiary α-Hydroxycarboxylic Acid Derivatives by Phase-transfer-catalyzed Asymmetric Alkylation of Diaryloxazolidin-2,4-Diones
T. Ooi, K. Fukumoto and K. Maruoka, Angew. Chem., Int. Ed., 45, 3839 (2006).
-
Highly Efficient Trialkylsilylcyanation of Aldehydes, Ketones and Imines Catalyzed by a Nucleophilic N-Heterocyclic Carbene
T. Kano, K. Sasaki, T. Konishi, H. Mii and K. Maruoka, Tetrahedron Lett., 47, 4615 (2006).
-
exo-Selective Asymmetric Diels-Alder Reaction Catalyzed by Diamine Salts as Organocatalysts
T. Kano, Y. Tanaka and K. Maruoka, Org. Lett., 8, 2687 (2006). (Highlighted in SYNFACTS, 843 (2006))
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Direct Asymmetric Hydroxyamination Reaction Catalyzed by an Axially Chiral Secondary Amine Catalyst
T. Kano, M. Ueda, J. Takai and K. Maruoka, J. Am. Chem. Soc., 128, 6046 (2006). (Highlighted in SYNFACTS, 615 (2006))
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Highly Enantioselective Monoalkylation of p-Chlorobenzaldehyde Imine of Glycine tert-Butyl Ester under Mild Phase-transfer Conditions
T. Ooi, Y. Arimura, Y. Hiraiwa, L. M. Yuan, T. Kano, T. Inoue, J. Matsumoto and K. Maruoka, Tetrahedron: Asymmetry, 17, 603 (2006).
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Organocatalytic Oxy-Michael Addition of Alcohols to α,β-Unsaturated Aldehydes
T. Kano, Y. Tanaka and K. Maruoka, Tetrahedron Lett., 47, 3039 (2006).
-
Asymmetric Strecker Reaction of Aldimines Using Aqueous Potassium Cyanide by Phase-Transfer Catalysis of Chiral Quaternary Ammonium Salts with a Tetranaphthyl Backbone
T. Ooi, Y. Uematsu and K. Maruoka,J. Am. Chem. Soc., 128, 2548 (2006). (Highlighted in SYNFACTS, 389 (2006))
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Design of Chiral Tin(IV) Aryloxide as a Mild Lewis Acid Catalyst for Enantioselective Diels-Alder Reaction
T. Kano, T. Konishi, S. Konishi and K. Maruoka, Tetrahedron Lett., 47, 873 (2006). (Highlighted in SYNFACTS, 468 (2006))
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Enantioselective 1,3-Dipolar Cycloaddition Reaction between Diazoacetates and α-Substituted Acroleins: Total Synthesis of Manzacidin A
T. Kano, T. Hashimoto and K. Maruoka, J. Am. Chem. Soc., 128, 2174 (2006). (Highlighted in SYNFACTS, 645 (2006))
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Asymmetric Michael Addition of Silyl Nitronates to Cyclic α,β-Unsaturated Ketones Catalyzed by Chiral Quaternary Ammonium Bifluorides: Isolation and Selective Functionalization of Enol Silyl Ethers of Optically Active γ-Nitro Ketones
T. Ooi, K. Doda, S. Takada and K. Maruoka, Tetrahedron Lett., 47, 145 (2006).
2005
- A Practical Synthesis of (S)-2-Cyclohexyl-2-phenylglycolic Acid via Organocatalytic Asymmetric Construction of a Tetrasubstituted Carbon Center
O. Tokuda, T. Kano, W.-G. Gao, T. Ikemoto and K. Maruoka, Org. Lett., 7, 5103 (2005). (Highlighted in SYNFACTS, 345 (2006))
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Dramatic Rate Enhancement of Asymmetric Phase-transfer-catalyzed Alkylations
S. Shirakawa, K. Yamamoto, M. Kitamura, T. Ooi and K. Maruoka, Angew. Chem., Int. Ed., 44, 625 (2005).
-
Highly Enantioselective Phase-Transfer-Catalyzed Alkylation of Protected α-Amino Acid Amides toward Practical Asymmetric Synthesis of Vicinal Diamines, α-Amino Ketones, andα-Amino Alcohols
T. Ooi, M. Takeuchi, D. Kato, Y. Uematsu, E. Tayama, D. Sakai and K. Maruoka, J. Am. Chem. Soc., 127, 5073 (2005).
-
N-Spiro Chiral Quaternary Ammonium Bromide Catalyzed Diastereo- and Enantioselective Conjugate Addition of Nitroalkanes to Cyclic α,β-Unsaturated Ketones under Phase-Transfer Conditions
T. Ooi, S. Takada, S. Fujioka and K. Maruoka, Org. Lett., 7, 5143 (2005).
-
Importance of Chiral Phase-Transfer Catalysts with Dual Functions in Obtaining High Enantioselectivity in the Michael Reaction of Malonates and Chalcone Derivatives
T. Ooi, D. Ohara, K. Fukumoto and K. Maruoka, Org. Lett., 7, 3195 (2005).
-
Asymmetric Synthesis of Functionalized Aza-Cyclic Amino Acids with Quaternary Stereocenters by a Phase-Transfer-Catalyzed Alkylation Strategy
T. Ooi, T. Miki and K. Maruoka, Org. Lett., 7, 191 (2005).
-
Design of Next-generation Chiral Acid-base Catalyst and Application to Fine Organic Synthesis
K. Maruoka, Yuki Gosei Kagaku Kyokaishi (有合化), 63, 686 (2005).
-
Chiral Designer Phase-transfer Catalysts for Practical Asymmetric Synthesis
K. Maruoka, Pure Appl. Chem., 77, 1285 (2005).
-
Powerful Chiral Phase-transfer Catalysts for the Asymmetric Synthesis of α-Alkyl- and α,α-Dialkyl-α-amino Acids
M. Kitamura, S. Shirakawa and K. Maruoka, Angew. Chem., Int. Ed., 44, 1549 (2005).
-
anti-Selective Direct Asymmetric Mannich Reactions Catalyzed by Axially Chiral Amino Sulfonamide as an Organocatalyst
T. Kano, Y. Yamaguchi, O. Tokuda and K. Maruoka, J. Am. Chem. Soc., 127, 16408 (2005). (Highlighted in SYNFACTS, 74, (2006))
-
Design of an Axially Chiral Amino Acid with a Binaphthyl Backbone as an Organocatalyst for a Direct Asymmetric Aldol Reaction
T. Kano, J. Takai, O. Tokuda and K. Maruoka, Angew. Chem., Int. Ed., 44, 3055 (2005).
-
Enantioselective Acylation of Secondary Alcohols Catalyzed by Chiral
N-Heterocyclic Carbenes
T. Kano, K. Sasaki and K. Maruoka, Org. Lett., 7, 1347 (2005).
-
Asymmetric 1,3-Dipolar Cycloaddition Reaction of Nitrones and Acrolein with a Bis-Titanium Catalyst as Chiral Lewis Acid
T. Kano, T. Hashimoto and K. Maruoka, J. Am. Chem. Soc., 127, 11926 (2005). (Highlighted in SYNFACTS, 321 (2005))
-
Convenient Preparation of Highly Active Phase-transfer Catalyst for Catalytic Asymmetric Synthesis of α-Alkyl- and α,α-Dialkyl-α-amino Acids: Application to the Short Asymmetric Synthesis of BIRT-377
Z. Han, Y. Yamaguchi, M. Kitamura and K. Maruoka, Tetrahedron Lett., 46, 8555 (2005).
2004
- Commendation
A. Suzuki, K. Suzuki, K. Maruoka, H. Komatsu,T. Ishibashi, T. Oikawa, S. Suga, N. Terada, M. Tokunaga, J. Matsuo and Y. Yamamoto, Yuki Gosei Kagaku Kyokaishi (有合化), 62, 251 (2004).
-
Development of a Recyclable Fluorous Chiral Phase-Transfer Catalyst: Application to the Catalytic Asymmetric Synthesis of α-Amino Acids
S. Shirakawa, Y. Tanaka and K. Maruoka, Org. Lett., 6, 1429 (2004).
-
Highly Enantioselective Alkylation of Glycine Methyl and Ethyl ester Derivatives under Phase-transfer Conditions: Its Synthetic Advantage
T. Ooi, Y. Uematsu and K. Maruoka, Tetrahedron Lett., 45, 1675 (2004).
-
Anti-selective Asymmetric Synthesis of β-Hydroxy-α-amino Acid Esters by the In Situ Generated Chiral Quaternary Ammonium Fluoride-catalyzed Mukaiyama-type Aldol Reaction
T. Ooi, M. Taniguchi, K. Doda and K. Maruoka, Adv. Synth. Catal., 346, 1073 (2004).
-
(2,7-Disubstituted-1,8-biphenylenedioxy)bis(dimethylaluminum) as Bidentate Organoaluminum Lewis Acids: Elucidation and Synthetic Utility of the Double Electrophilic Activation Phenomenon
T. Ooi, M. Takahashi, M. Yamada, E. Tayama, K. Omoto and K. Maruoka, J. Am. Chem. Soc., 126, 1150 (2004).
-
Efficient Asymmetric Catalysis of Chiral Organoaluminum Complex for Enantioselective Ene Reactions of Aldehydes
T. Ooi, K. Ohmatsu, D. Uraguchi and K. Maruoka, Tetrahedron Lett., 45, 4481 (2004).
-
Organoaluminum-mediated Selective 1,2-Rearrangement of γ,γ-Disubstituted γ-Amino α,β-Unsaturated Carbonyl Compounds Leading to Unsymmetrically Substituted Pyrroles
T. Ooi, K. Ohmatsu, H. Ishii, A. Saito and K. Maruoka, Tetrahedron Lett., 45, 9315 (2004).
-
Design of New Chiral Phase-Transfer Catalysts with Dual Functions for Highly Enantioselective Epoxidation of α,β-Unsaturated Ketones
T. Ooi, D. Ohara, M. Tamura and K. Maruoka, J. Am. Chem. Soc., 126, 6844 (2004).
-
Evaluation of the Relationship between the Catalyst Structure and Regio- As Well As Stereoselectivity in the Chiral Ammonium Bifluoride-catalyzed Asymmetric Addition of Silyl Nitronates to α,β-Unsaturated Aldehydes
T. Ooi, K. Morimoto, K. Doda and K. Maruoka, Chem. Lett., 33, 824 (2004).
-
Meerwein-Ponndorf-Verley Alkynylation of Aldehydes: Essential Modification of Aluminum Alkoxides for Rate Acceleration and Asymmetric Synthesis
T. Ooi, T. Miura, K. Ohmatsu, A. Saito and K. Maruoka, Org. Biomol. Chem., 2, 3312 (2004).
-
Asymmetric Organocatalysis of Structurally Well-Defined Chiral Quaternary Ammonium Fluorides
T. Ooi and K. Maruoka, Acc. Chem. Res., 37, 526 (2004).
-
Chiral Phase-transfer Catalysts as Asymmetric Organic Catalysts. Focusing on Amino Acid Synthesis
T. Ooi and K. Maruoka, Kagaku to Kogyo (化学と工業), 57, 711 (2004).
-
Development of Highly Diastereo- and Enantioselective Direct Asymmetric Aldol Reaction of a Glycinate Schiff Base with Aldehydes Catalyzed by Chiral Quaternary Ammonium Salts
T. Ooi, M. Kameda, M. Taniguchi and K. Maruoka, J. Am. Chem. Soc., 126, 9685 (2004).
-
Catalytic Asymmetric Synthesis of a Nitrogen Analogue of Dialkyl Tartrate by Direct Mannich Reaction under Phase-Transfer Conditions
T. Ooi, M. Kameda, J. Fujii and K. Maruoka, Org. Lett., 6, 2397 (2004).
-
Highly Enantioselective Conjugate Addition of Nitroalkanes to Alkylidenemalonates Using Efficient Phase-Transfer Catalysis of N-Spiro Chiral Ammonium Bromides
T. Ooi, S. Fujioka and K. Maruoka, J. Am. Chem. Soc., 126, 11790 (2004).
-
Stereoselective Terminal Functionalization of Small Peptides for Catalytic Asymmetric Synthesis of Unnatural Peptides
K. Maruoka, E. Tayama and T. Ooi, Proc. Natl. Acad. Sci. USA, 101, 5824 (2004).
-
Design of Environmentally-benign Chiral Phase Transfer Catalysts and Development of Practical Asymmetric Synthetic Processes
K. Maruoka, Kagaku to Kogyo (化学と工業), 78, 51 (2004).
-
Design of Chiral Organocatalysts
K. Maruoka, Shokubai(触媒), 46, 340 (2004). v
-
Design of New Polyamine-based Chiral Phase-transfer Catalysts for the Enantioselective Synthesis of Phenylalanine
T. Kano, S. Konishi, S. Shirakawa and K. Maruoka, Tetrahedron: Asymmetry, 15, 1243 (2004).
2003
- Synthetic Utility of Bowl-shaped Tris(2,6-diphenyl-benzyl)silyl Glyoxylate as a Stable Glyoxylate: Application to Highly Diastereoselective Aldol Reactions
S. Shirakawa and K. Maruoka, Tetrahedron Lett., 44, 281 (2003).
-
Bowl-shaped [Tris(2,6-diphenylbenzyl)siloxy]dimethylaluminum Catalyst for Effecting Tishchenko Reaction
S. Shirakawa, J. Takai, K. Sasaki, T. Miura and K. Maruoka, Heterocycles, 59, 57 (2003).
-
New, Improved Procedure for the Synthesis of Structurally Diverse
N-Spiro C2-Symmetric Chiral Quaternary Ammonium Bromides
T. Ooi, Y. Uematsu and K. Maruoka, J. Org. Chem., 68, 4576 (2003).
-
Highly Stereoselective N-Terminal Functionalization of Small Peptides by Chiral Phase-Transfer Catalysis
T. Ooi, E. Tayama and K. Maruoka, Angew. Chem., Int. Ed., 42, 579 (2003).
-
Practical Asymmetric Synthesis of Vicinal Diamines Through the Catalytic Highly Enantioselective Alkylation of Glycine Amide Derivatives
T. Ooi, D. Sakai, M. Takeuchi, E. Tayama and K. Maruoka, Angew. Chem., Int. Ed., 42, 5868 (2003).
-
Asymmetric Skeletal Rearrangement of Symmetrically α,α-Disubstituted α-Amino Aldehydes: A New Entry to Optically Active α-Hydroxy Ketones
T. Ooi, A. Saito and K. Maruoka, J. Am. Chem. Soc., 125, 3220 (2003).
-
Isopropoxyaluminum 1,1'-Biphenyl-2-oxy-2'-perfluorooctanesulfonamide as a Catalyst for Tishchenko Reaction
T. Ooi, K. Ohmatsu, K. Sasaki, T. Miura and K. Maruoka, Tetrahedron Lett., 44, 3191 (2003).
-
Highly Enantioselective Construction of Quaternary Stereocenters on β-Keto Esters by Phase-transfer Catalytic Asymmetric Alkylation and Michael Reaction
T. Ooi, T. Miki, M. Taniguchi, M. Shiraishi, M. Takeuchi and K. Maruoka, Angew. Chem., Int. Ed., 42, 3796 (2003).
-
Highly Enantioselective Construction of Quaternary Stereocenters on β-Keto Esters by Phase-transfer Catalytic Asymmetric Alkylation and Michael Reaction. [Erratum to document cited in CA139:350529]
T. Ooi, T. Miki, M. Taniguchi, M. Shiraishi, M. Takeuchi and K. Maruoka, Angew. Chem., Int. Ed., 42, 3981 (2003).
-
Enantioselective Synthesis of α-Amino Acids by Chiral Phase-transfer Catalysis
T. Ooi and K. Maruoka, Yuki Gosei Kagaku Kyokaishi (有合化), 61, 1195 (2003).
-
A New N-Spiro C2-Symmetric Chiral Quaternary Ammonium Bromide Consisting of 4,6-Disubstituted Biphenyl Subunit as an Efficient Chiral Phase-transfer Catalyst
T. Ooi, Y. Kubota and K. Maruoka, Synlett, 1931 (2003).
-
Design of N-Spiro C2-Symmetric Chiral Quaternary Ammonium Bromides as Novel Chiral Phase-Transfer Catalysts: Synthesis and Application to Practical Asymmetric Synthesis of α-Amino Acids
T. Ooi, M. Kameda and K. Maruoka, J. Am. Chem. Soc., 125, 5139 (2003).
-
Fluorotetraphenylbismuth: A New Reagent for Efficient Regioselective α-Phenylation of Carbonyl Compounds
T. Ooi, R. Goto and K. Maruoka, J. Am. Chem. Soc., 125, 10494 (2003).
-
Designer Chiral Quaternary Ammonium Bifluorides as an Efficient Catalyst for Asymmetric Nitroaldol Reaction of Silyl Nitronates with Aromatic Aldehydes
T. Ooi, K. Doda and K. Maruoka, J. Am. Chem. Soc., 125, 2054 (2003).
-
Highly Enantioselective Michael Addition of Silyl Nitronates to α,β-Unsaturated Aldehydes Catalyzed by Designer Chiral Ammonium Bifluorides: Efficient Access to Optically Active γ-Nitro Aldehydes and Their Enol Silyl Ethers
T. Ooi, K. Doda and K. Maruoka, J. Am. Chem. Soc., 125, 9022 (2003).
-
Enantioselective Amino Acid Synthesis by Chiral Phase-Transfer Catalysis
K. Maruoka and T. Ooi, Chem. Rev., 103, 3013 (2003).
-
Catalytic Asymmetric Synthesis of α-Amino Acid Derivatives and Peptides Using Chiral Phase-transfer Catalysts
K. Maruoka, P. Jpn. Acad. B-Phys., 79, 181 (2003).
-
Catalytic Asymmetric Methallylation and Propargylation of Aldehydes with Bis(((S)-binaphthoxy)(isopropoxy)titanium) Oxide
S. Konishi, H. Hanawa and K. Maruoka, Tetrahedron: Asymmetry, 14, 1603 (2003).
-
Catalytic Enantioselective Allylation of Ketones with Novel Chiral Bis-titanium(IV) Catalyst
S. Kii and K. Maruoka, Chirality, 15, 68 (2003).
-
A Scalable Synthesis of (R)-3,5-Dihydro-4H-dinaphth[2,1-c:1'2'-e] azepine
M. Ikunaka, K. Maruoka, Y. Okuda and T. Ooi, Org. Process Res. Dev., 7, 644 (2003).
-
Symmetrical 4,4',6,6'-Tetraarylbinaphthyl-substituted Ammonium Bromide as a New, Chiral Phase-transfer Catalyst
T. Hashimoto, Y. Tanaka and K. Maruoka, Tetrahedron: Asymmetry, 14, 1599 (2003).
-
Substituent Effect of Binaphthyl-modified Spiro-type Chiral Phase-transfer Catalysts
T. Hashimoto and K. Maruoka, Tetrahedron Lett., 44, 3313 (2003).
-
Catalytic Asymmetric Allylation of Aldehydes and Related Reactions with Bis[(S)-binaphthoxy](isopropoxy)titanium] Oxide as a μ-Oxo-type Chiral Lewis Acid
H. Hanawa, D. Uraguchi, S. Konishi, T. Hashimoto and K. Maruoka, Chem.-Eur. J., 9, 4405 (2003).
-
Bis(((S)-binaphthoxy)(isopropoxy)titanium) Oxide as a μ-Oxo-Type Chiral Lewis Acid: Application to Catalytic Asymmetric Allylation of Aldehydes
H. Hanawa, T. Hashimoto and K. Maruoka, J. Am. Chem. Soc., 125, 1708 (2003).
2002
- Activation of Ether Functionality of Allyl Vinyl Ethers by Chiral Bis(organoaluminum) Lewis Acids: Application to Asymmetric Claisen Rearrangement
E. Tayama, A. Saito, T. Ooi and K. Maruoka, Tetrahedron, 58, 8307 (2002).
-
A Highly Chemoselective Mukaiyama Aldol Reaction of Saturated Aldehyde over Unsaturated Aldehyde with Enol Tris(2,6-diphenylbenzyl)silyl Ether
S. Shirakawa and K. Maruoka, Tetrahedron Lett., 43, 1469 (2002
-
Unusually Stable Silyl Ketones with Bowl-shaped Tris(2,6-diphenylbenzyl)-silyl Group for Various Nucleophilic Attacks and α-Deprotonation
S. Shirakawa, N. Komatsu, A. Iwasaki and K. Maruoka, Synlett, 577 (2002).
-
Chemoselective Reduction of Saturated Aldehydes and Ketones over Unsaturated Carbonyls with Bowl-shaped Tris(2,6-diphenylbenzyl)tin Hydride
K. Sasaki, N. Komatsu, S. Shirakawa and K. Maruoka, Synlett, 575 (2002).
-
Evaluation of the Efficiency of the Chiral Quaternary Ammonium Salt β-Np-NAS-Br in the Organic-aqueous Phase-transfer Alkylation of a Protected Glycine Derivative
T. Ooi, Y. Uematsu and K. Maruoka, Adv. Synth. Catal., 344, 288 (2002).
-
Conformationally Flexible, Chiral Quaternary Ammonium Bromides for Asymmetric Phase-transfer Catalysis
T. Ooi, Y. Uematsu, M. Kameda and K. Maruoka, Angew. Chem., Int. Ed., 41, 1551 (2002).
-
Direct Asymmetric Aldol Reactions of Glycine Schiff Base with Aldehydes Catalyzed by Chiral Quaternary Ammonium Salts
T. Ooi, M. Taniguchi, M. Kameda and K. Maruoka, Angew. Chem., Int. Ed., 41, 4542 (2002).
-
Asymmetric Induction in the Neber Rearrangement of Simple Ketoxime Sulfonates under Phase-Transfer Conditions: Experimental Evidence for the Participation of an Anionic Pathway
T. Ooi, M. Takahashi, K. Doda and K. Maruoka, J. Am. Chem. Soc., 124, 7640 (2002).
-
Practical Oppenauer (OPP) Oxidation of Alcohols with a Modified Aluminum Catalyst
T. Ooi, H. Otsuka, T. Miura, H. Ichikawa and K. Maruoka, Org. Lett., 4, 2669 (2002).
-
Catalytic Meerwein-Ponndorf-Verley (MPV) and Oppenauer (OPP) Reactions: Remarkable Acceleration of the Hydride Transfer by Powerful Bidentate Aluminum Alkoxides
T. Ooi, T. Miura, Y. Itagaki, H. Ichikawa and K. Maruoka, Synthesis, 279 (2002).
-
Design of Environmental Friendly Chiral Phase Transfer Catalysts: Development of Practical Synthetic Processes for Chiral Amino Acids and Peptides
K. Maruoka, Fain Kemikaru, 31, 18 (2002).
-
Bidentate Lewis Acid Catalysts in Asymmetric Synthesis
K. Maruoka, Pure Appl. Chem., 74, 123 (2002).
-
Corrigendum to "Practical Approach for Catalytic Asymmetric Allylation of Aldehydes with a Chiral Bidentate Titanium(IV) Complex" [Tetrahedron Lett. 42 (2001) 1935-1939]
S. Kii and K. Maruoka, Tetrahedron Lett., 43, 345 (2002).
-
Catalytic, Enantioselective Hetero-Diels-Alder Reaction with Novel, Chiral Bis-Titanium(IV) Catalyst
S. Kii, T. Hashimoto and K. Maruoka, Synlett, 931 (2002).
-
Bis-zirconium and Bis-hafnium Catalysts for the Strong Activation of Carbonyl Substrates. [Erratum to document cited in CA133:251918]
H. Hanawa, S. Kii, N. Asao and K. Maruoka, Tetrahedron Lett., 43, 343 (2002).
2001
- Bowl-shaped Tris(2,6-diphenylbenzyl)tin Hydride: A Unique Reducing Agent for Radical and Ionic Chemistry
K. Sasaki, Y. Kondo and K. Maruoka, Angew. Chem., Int. Ed., 40, 411 (2001).
-
Advantage of Anaerobic Conditions in the Highly Enantioselective Synthesis of α,α-Dialkyl-α-amino Acids by Chiral Phase-transfer Catalysis
T. Ooi, M. Takeuchi, D. Ohara and K. Maruoka, Synlett, 1185 (2001).
-
Concise, Catalytic Asymmetric Synthesis of Tetrahydroisoquinoline- and Dihydroisoquinoline-3-carboxylic Acid Derivatives
T. Ooi, M. Takeuchi and K. Maruoka, Synthesis, 1716 (2001).
-
Facile Conversion of Trialkylsilyl Esters to Alkyl Esters Mediated by Tetrabutylammonium Fluoride Trihydrate
T. Ooi, H. Sugimoto and K. Maruoka, Heterocycles, 54, 593 (2001).
-
Esterification of Carboxylic Acids Catalyzed by In Situ Generated Tetraalkylammonium Fluorides
T. Ooi, H. Sugimoto, K. Doda and K. Maruoka, Tetrahedron Lett., 42, 9245 (2001).
-
o-(o-Iodophenyl)phenylselenenyl Ethers/t-BuLi System as an Alkyllithium Qquivalent with Structural Variations
T. Ooi, D. Sakai, M. Takada, N. Komatsu and K. Maruoka, Synlett, 791 (2001).
-
A Convergent, Homochiral Bis(amino alcohol) for Obtaining High Enantioselectivity in the Addition of Diethylzinc to Aldehydes
T. Ooi, A. Saito and K. Maruoka, Chem. Lett., 1108 (2001).
-
Practical Approach to the Meerwein-Ponndorf-Verley Reduction of Carbonyl Substrates with New Aluminum Catalysts
T. Ooi, H. Ichikawa and K. Maruoka, Angew. Chem., Int. Ed., 40, 3610 (2001).
-
Remarkable Template Effect of a Lewis Acid Receptor in Intramolecular Radical Cyclization: Control of Reaction Pathway As Well As Stereochemistry
T. Ooi, Y. Hokke, E. Tayama and K. Maruoka, Tetrahedron, 57, 135 (2001).
-
Rapid and Mild Generation of Carbon Radicals from o-(o-Iodophenyl) Phenylthio Derivatives by an Anchimeric Approach
T. Ooi, M. Furuya, D. Sakai and K. Maruoka, Adv. Synth. Catal., 343, 166 (2001).
-
Utilization of o-[(Z)-2-Trimethylsilyl-2-iodovinyl]phenylthio Derivatives as Carbon Radical Precursors by Anchimeric Approach
T. Ooi, M. Furuya, D. Sakai, Y. Hokke and K. Maruoka, Synlett, 541 (2001).
-
Distinct Advantage of the In Situ Generation of Quaternary Ammonium Fluorides under Phase-Transfer Conditions toward Catalytic Asymmetric Synthesis
T. Ooi, K. Doda and K. Maruoka, Org. Lett., 3, 1273 (2001).
-
Tris(2,6-diphenylbenzyl)amine (TDA) and Tris(2,6-diphenylbenzyl)phosphine (TDP) with Unique Bowl-shaped Structures: Synthetic Application of Functionalized TDA to Chemoselective Silylation of Benzylic Alcohols
M. Naiki, S. Shirakawa, K. Kon-i, Y. Kondo and K. Maruoka, Tetrahedron Lett., 42, 5467 (2001).
-
Tris(2,6-diphenylbenzyl)amine (TDA) and Tris(2,6-diphenylbenzyl)phosphine (TDP) with Unique Bowl-shaped Structures: Synthetic Application of Functionalized TDA to Chemoselective Silylation of Benzylic Alcohols. [Erratum to document cited in CA135:303941]
M. Naiki, S. Shirakawa, K. Kon-i, Y. Kondo and K. Maruoka, Tetrahedron Lett., 42, 7919 (2001).
-
Design of New, Chiral Phase-transfer Catalysts for Practical, Catalytic Asymmetric Synthesis
K. Maruoka, J. Fluorine Chem., 112, 95 (2001).
-
New Chiral Bis-titanium(IV) Catalyst with Dibenzofuran Spacer for Catalytic Asymmetric Allylation of Aldehydes and Aryl Ketones
H. Hanawa, S. Kii and K. Maruoka, Adv. Synth. Catal., 343, 57 (2001).
-
New Chiral Bis-titanium(IV) Catalyst with Dibenzofuran Spacer for Catalytic Asymmetric Allylation of Aldehydes and Aryl Ketones. [Erratum to document cited in CA134:312774]
H. Hanawa, S. Kii and K. Maruoka, Adv. Synth. Catal., 343, No pp given (2001).
2000
- Chemistry of Chelate-type Hypervalent Boron and Aluminum. Utilization for Selective Organic Synthesis
D. Uraguchi, T. Ooi and K. Maruoka, Yuki Gosei Kagaku Kyokaishi (有合化), 58, 14 (2000).
-
Unique Synthetic Utility of BF3.OEt2 in the Highly Diastereoselective Reduction of Hydroxy Carbonyl and Dicarbonyl Substrates
T. Ooi, D. Uraguchi, J. Morikawa and K. Maruoka, Org. Lett., 2, 2015 (2000).
-
Dramatic Rate Enhancement by Ultrasonic Irradiation in Liquid-liquid Phase-transfer Catalytic Reactions
T. Ooi, E. Tayama, K. Doda, M. Takeuchi and K. Maruoka, Synlett, 1500 (2000).
-
Practical Catalytic Enantioselective Synthesis of α,α-Dialkyl-α-amino Acids by Chiral Phase-transfer Catalysis
T. Ooi, M. Takeuchi, M. Kameda and K. Maruoka, J. Am. Chem. Soc., 122, 5228 (2000).
-
Zr(Ot-Bu)4 as a New Promoter for the Meerwein-Ponndorf-Verley Alkynylation and Cyanation of Aldehydes
T. Ooi, K. Takaya, T. Miura and K. Maruoka, Synlett, 69 (2000).
-
Chiral Zirconium Alkoxides-mediated Asymmetric Meerwein-Ponndorf-Verley Cyanation of Aldehydes
T. Ooi, K. Takaya, T. Miura, H. Ichikawa and K. Maruoka, Synlett, 1133 (2000).
-
Facile Synthesis of L-Dopa tert-Butyl Ester by Catalytic Enantioselective Phase-transfer Alkylation
T. Ooi, M. Kameda, H. Tannai and K. Maruoka, Tetrahedron Lett., 41, 8339 (2000).
-
Efficient Catalytic Procedure for Etherification of Alcohols with MeAl(NTf2)2
T. Ooi, H. Ichikawa, Y. Itagaki and K. Maruoka, Heterocycles, 52, 575 (2000).
-
Development of Function in Bidentate Lewis Acid Catalysis
K. Maruoka, Kikan Kagaku Sosetsu (季刊化学総説), 47, 39 (2000).
- v
Amphiphilic Cleavage of γ-Stannyl Ketones with ATPH/RLi: Application to Enone Fragmentation by the Conjugate Addition-cleavage Sequence
Y. Kondo, K. Kon-i, A. Iwasaki, T. Ooi and K. Maruoka, Angew. Chem., Int. Ed., 39, 414 (2000).
-
Tris(2,6-diphenylbenzyl)silyl Group as a New and Highly Effective Protector for Carboxylic Acids: Unusual Behavior of Such Carboxylic Esters toward Common Nucleophiles and Bases
A. Iwasaki, Y. Kondo and K. Maruoka, J. Am. Chem. Soc., 122, 10238 (2000).
1999
- Efficient Synthesis of Aromatic sec-Amides from Esters. Synthetic Utility of Dilithium Amides
T. Ooi, E. Tayama, M. Yamada and K. Maruoka, Synlett, 729 (1999).
-
Hypercoordination of Aluminum: Evidence for the Implication of Pentacoordinate Complexes in the R2AlCl-promoted Reduction of Alkoxycarbonyl Substrates
T. Ooi, J. Morikawa, D. Uraguchi and K. Maruoka, Tetrahedron Lett., 40, 2993 (1999).
-
Remarkable Catalytic Activity of Me3Ga in the Alkylation of Hetero-substituted Epoxides with Alkynyllithiums
T. Ooi, J. Morikawa, H. Ichikawa and K. Maruoka, Tetrahedron Lett., 40, 5881 (1999).
-
Catalytic, High-speed Tishchenko Reaction using (2,7-Dimethyl-1,8-biphenylenedioxy)-
bis(diisopropoxyaluminum) as a Powerful Bidentate Catalyst
T. Ooi, T. Miura, K. Takaya and K. Maruoka, Tetrahedron Lett., 40, 7695 (1999).
-
Molecular Design of a C2-Symmetric Chiral Phase-Transfer Catalyst for Practical Asymmetric Synthesis of α-Amino Acids
T. Ooi, M. Kameda and K. Maruoka, J. Am. Chem. Soc., 121, 6519 (1999).
-
Pentacoordinate Organoaluminum Chemistry: Catalytic Efficiency of Me3Al in the Epoxide Cleavage with Alkynyllithiums
T. Ooi, N. Kagoshima, H. Ichikawa and K. Maruoka, J. Am. Chem. Soc., 121, 3328 (1999).
-
Simultaneous Functional Group Manipulation in the Meerwein-Ponndorf-Verley Reduction Process Catalyzed by Bidentate Aluminum Reagent
T. Ooi, Y. Itagaki, T. Miura and K. Maruoka, Tetrahedron Lett., 40, 2137 (1999).
-
Unique Property of Copper(I) Chloride as a Radical Initiator as well as a Lewis Acid: Application to CuCl-catalyzed Aldol Reaction of α,β-Unsaturated Ketones with Bu3SnH
T. Ooi, K. Doda, D. Sakai and K. Maruoka, Tetrahedron Lett., 40, 2133 (1999).
-
The Synthetic Utility of the Hypercoordination of Boron and Aluminum
K. Maruoka and T. Ooi, Chem.-Eur. J., V5, 829 (1999).
-
Highly Efficient Amphiphilic Cleavage of γ-Iodo Carbonyl Substrates with Aluminum Tris(2,6-diphenylphenoxide)/t-BuLi System
Y. Kondo, K. Kon-I, T. Ooi and K. Maruoka, Tetrahedron Lett., 40, 9041 (1999).
-
Double Coordination Ability of Bis(dimethylaluminum) Sulfate toward Carbonyl Substrates
H. Hanawa, N. Maekawara and K. Maruoka, Tetrahedron Lett., 40, 8379 (1999).
-
Double Coordination and Activation Ability of Methylalumoxane (MAO) for Hetero Functionality: Pivotal Role as Polymerization Cocatalyst
H. Hanawa, N. Abe and K. Maruoka, Tetrahedron Lett., 40, 5365 (1999).
-
Highly Efficient Alkylation of Epoxides with R3Al/H2O Systems Based on the Double Activation of Epoxy Oxygens
N. Abe, H. Hanawa, K. Maruoka, M. Sasaki and M. Miyashita, Tetrahedron Lett., 40, 5369 (1999).
1998
- Pentacoordinate vs. Tetracoordinate Complexation for Alkoxycarbonyl Compounds with Dialkylboron Triflates and Trifluoroacetates
T. Ooi, D. Uraguchi and K. Maruoka, Tetrahedron Lett., 39, 8105 (1998).
-
Hypercoordination of Boron and Aluminum: Synthetic Utility as Chelating Lewis Acids
T. Ooi, D. Uraguchi, N. Kagoshima and K. Maruoka, J. Am. Chem. Soc., 120, 5327 (1998).
-
Rate Acceleration in Nucleophilic Alkylation of Carbonyl Compounds with a New Template Containing Two Metallic Centers
T. Ooi, M. Takahashi and K. Maruoka, Angew. Chem., Int. Ed., 37, 835 (1998).
-
Dilithium 2,2'-Methylenebis(4,6-di-tert-butylphenoxide) as a Bidentate Lewis Acid in Organic Synthesis
T. Ooi, A. Saito and K. Maruoka, Tetrahedron Lett., 39, 3745 (1998).
-
First Meerwein-Ponndorf-Verley Alkynylation: Nonorganometallic Way for Carbonyl Alkylations
T. Ooi, T. Miura and K. Maruoka, J. Am. Chem. Soc., 120, 10790 (1998).
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Highly Efficient, Catalytic Meerwein-Ponndorf-Verley Reduction with a Novel Bidentate Aluminum Catalyst
T. Ooi, T. Miura and K. Maruoka, Angew. Chem., Int. Ed., 37, 2347 (1998).
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Exceptionally Bulky Lewis Acidic Reagent, MAD
T. Ooi and K. Maruoka, Rev. Heteroat. Chem., 18, 61 (1998).
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Unprecedented Encapsulation of Carbonyl Guest with Designer Lewis Acid Receptor
T. Ooi, Y. Kondo and K. Maruoka, Angew. Chem., Int. Ed., 37, 3039 (1998).
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Selective Conjugate Alkylation by Alkyllithium Nucleophiles of α,β,γ,δ-Unsaturated Aldehydes with Functionalized Lewis Acid Receptors
T. Ooi, Y. Kondo, K. Kon-I and K. Maruoka, Chem. Lett., 403 (1998).
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Organoaluminum-promoted Selective Addition to Fluorinated Carbonyl Compounds via Pentacoordinate Trialkylaluminum Complexes
T. Ooi, N. Kagoshima, D. Uraguchi and K. Maruoka,Tetrahedron Lett., 39, 7105 (1998).
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Facile and Selective Alkylation of 3,3,3-Trifluoropropene Oxide with Organoaluminum Reagents via Pentacoordinate Trialkylaluminum Complexes
T. Ooi, M. Furuya and K. Maruoka, Chem. Lett., 817 (1998).
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High Activation of Carbonyl Groups with Bidentate Lewis Acid Catalysts
T. Ooi, N. Asao and K. Maruoka, Yuki Gosei Kagaku Kyokaishi, 56, 377 (1998).
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o-Bis(allyldimethylsilyl)benzene as a Remarkably Effective Allylation Agent for Carbonyl Compounds with Bu4NF Catalyst
N. Asao, A. Shibato, Y. Itagaki, F. Jourdan and K. Maruoka, Tetrahedron Lett., 39, 3177 (1998).
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Simultaneous Coordination and Double Activation Phenomena of Carbonyl and Epoxy Oxygens by Bis-titanium Reagent as a Bidentate Lewis Acid Catalyst
N. Asao, S. Kii, H. Hanawa and K. Maruoka, Tetrahedron Lett., 39, 3729 (1998).
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Protic Solvent-promoted Neutral Allylation of Aldehydes and Ketones with 1,8-Bis(allylstannyl)naphthalenes
N. Asao, N. Abe, Z. Tan and K. Maruoka, Synlett, 377 (1998).
1997
- Regioselective Robinson Annulation Realized by the Combined Use of Lithium Enolates and Aluminum Tris(2,6-diphenylphenoxide) (ATPH)
S. Saito, I. Shimada, Y. Takamori, M. Tanaka, K. Maruoka and H. Yamamoto, Bull. Chem. Soc. Jpn., 70, 1671 (1997).
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Selective Alkylation of Ketones with a Bulky Aluminum Reagent. The THF-TBSOTf System
S. Saito, M. Ito, K. Maruoka and H. Yamamoto, Synlett, 357 (1997).
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Organoaluminum-catalyzed Alkylation by tert-Alkyl Fluorides: Synthetic Utility of the Al-F Interaction
T. Ooi, D. Uraguchi, N. Kagoshima and K. Maruoka, Tetrahedron Lett., 38, 5679 (1997).
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Bidentate Organoaluminum Lewis Acid for Selective Activation of Carbonyl over Acetal Functionality: Chemoselective Functionalization
T. Ooi, E. Tayama, M. Takahashi and K. Maruoka, Tetrahedron Lett., 38, 7403 (1997).
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Conjugate Allylation to α,β-Unsaturated Aldehydes with Amphiphilic Alkylation System, ATPH/allylcerium Reagents
T. Ooi, T. Miura, Y. Kondo and K. Maruoka, Tetrahedron Lett., 38, 3947 (1997).
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Evaluation of Several Fluorinated ATPH Derivatives as Functionalized Lewis Acid Receptors for Conjugate Alkylation to α,β-Unsaturated Aldehydes with Alkyllithium Nucleophiles
T. Ooi, Y. Kondo, T. Miura and K. Maruoka, Tetrahedron Lett., 38, 3951 (1997).
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Conjugate Allylation to α,β-Unsaturated Aldehydes with the New Chemzyme p-F-ATPH
T. Ooi, Y. Kondo and K. Maruoka, Angew. Chem., Int. Ed. Engl., 36, 1183 (1997).
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Organoaluminum-promoted Rearrangement of Epoxysilanes to α-Silylaldehydes
T. Ooi, T. Kiba and K. Maruoka, Chem. Lett., 519 (1997).
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Fluorine-Assisted Selective Alkylation to Fluorinated Epoxides and Carbonyl Compounds: Implication of Pentacoordinate Trialkylaluminum Complexes
T. Ooi, N. Kagoshima and K. Maruoka, J. Am. Chem. Soc., 119, 5754 (1997).
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Remarkable Template Effect of a Lewis Acidic Receptor in Intramolecular Radical Cyclizations
T. Ooi, Y. Hokke and K. Maruoka, Angew. Chem., Int. Ed. Engl., 36, 1181 (1997).
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Organoaluminum-promoted Cyclization of Olefinic Epoxides. A New and Stereoselective Approach to Cyclohexane Frameworks
N. Murase, K. Maruoka, T. Ooi and H. Yamamoto, Bull. Chem. Soc. Jpn., 70, 707 (1997).
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1,8-Bis(allylstannyl)naphthalene Derivatives as Neutral Allylation Agents: Rate Acceleration by Chelation-induced Lewis Acidity
N. Asao, P. Liu and K. Maruoka, Angew. Chem., Int. Ed. Engl., 36, 2507 (1997).
1996
- (2,7-Dimethyl-1,8-biphenylenedioxy)bis(dimethylaluminum) as a Bidentate Lewis Acid: Its Reactivity and Selectivity in Organic Synthesis
T. Ooi, M. Takahashi and K. Maruoka, J. Am. Chem. Soc., 118, 11307 (1996).
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Exceptionally Bulky Lewis Acidic Reagent, MAD
T. Ooi and K. Maruoka, Yuki Gosei Kagaku Kyokaishi (有合化), 54, 200 (1996).
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New Developments in Conjugate Alkylation
S
K. Maruoka, Kagaku (化学), 51, 138 (1996).
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