title: Asymmetric Michael reaction promoted by new chiral phase-transfer catalysts.
abstract: A catalytic asymmetric Michael reaction promoted by new chiral quaternary ammonium salts is described. The products are obtained with moderate ee (up to 75% ee), and the enantioselectivity is strongly dependent on both the substituents on the aromatic rings and the ammonium moiety in the catalysts.
authors.affiliation: Graduate School of Pharmaceutical Sciences, Nagoya City University, Japan. arai@p.chiba-u.ac.jp
authors.forename: Shigeru
authors.initials: S
authors.lastname: Arai
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Tokumaru
authors.forename: Toyohiko
authors.initials: T
authors.lastname: Aoyama
mesh_terms: D002384:Catalysis; D044367:Phase Transition; D000644:Quaternary Ammonium Compounds / Q000737:chemistry* / Q000378:metabolism*; D013237:Stereoisomerism
chemical_list: D000644:Quaternary Ammonium Compounds