Asymmetric Michael Reaction Promoted by New Chiral Phase-Transfer Catalysts
2004; Pharmaceutical Society of Japan; Volume: 52; Issue: 5 Linguagem: Inglês
10.1248/cpb.52.646
ISSN1347-5223
AutoresShigeru Arai, Kazuyuki Tokumaru, Toyohiko Aoyama,
Tópico(s)Zeolite Catalysis and Synthesis
ResumoA 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.
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