Maruoka Group, Department of Chemistry, Graduate School of Science, Kyoto University
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Recent Development and Application of Chiral Phase-Transfer Catalysts.
T. Hashimoto, K. Maruoka, Chem. Rev., 5656 (2007).

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).

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).

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).

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).

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))

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).

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 SYNFACT of the month in SYNFACTS, 429 (2007)) (Highlighted in SYNFORM, A6 (2007))

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)

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).