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Maruoka Group, Department of Chemistry, Graduate School of Science, Kyoto University
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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 (2005))

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).