Solution- and Solid-Phase Approaches in Asymmetric Phase-Transfer Catalysis by Cinchona Alkaloid Derivatives
作者:Baptiste Thierry、Thierry Perrard、Christophe Audouard、Jean-Chrstophe Plaquevent、Dominique Cahard
DOI:10.1055/s-2001-16749
日期:——
Stuttgart · New York ISSN 0039-7881 Abstract: The catalytic asymmetric alkylation under phase-transfer conditions of various substrates (enones, -fluoro ketones, glycineimines) promoted by chiral quaternary ammonium salts derived from cinchona alkaloids is described. A solvent-free phase-transfer catalysis is presented as well as a new type of polymer-supported phase-transfer catalyst derived from
Synthesis 2001, No. 11, 28 08 2001。文章标识符:1437-210X,E;2001,0,11,1742,1746,ftx,en;C03701SS.pdf。© Georg Thieme Verlag Stuttgart · 纽约 ISSN 0039-7881 摘要:描述了由金鸡纳生物碱衍生的手性季铵盐促进的各种底物(烯酮、-氟酮、甘氨酸亚胺)在相转移条件下的催化不对称烷基化。提出了一种无溶剂相转移催化剂,以及一种由金鸡纳生物碱衍生的新型聚合物负载相转移催化剂。