Highly enantio- and diastereoselective organocatalytic cascade aza-Michael–Michael reactions: a direct method for the synthesis of trisubstituted chiral pyrrolidines
作者:Hao Li、Liansuo Zu、Hexin Xie、Jian Wang、Wei Wang
DOI:10.1039/b812464g
日期:——
An unprecedented highly enantio- and diastereoselective cascade aza-Michael-Michael reaction of alpha,beta-unsaturated aldehydes with trans-gamma-Ts protected amino alpha,beta-unsaturated ester has been developed; the simple and practical process, efficiently catalyzed by chiral diphenylprolinol TMS ether, serves as a powerful access to highly functionalized trisubstituted chiral pyrrolidines.
已经开发出前所未有的高度对映体和非对映体选择性的α,β-不饱和醛与反式-γ-Ts保护的氨基α,β-不饱和酯的氮杂-Michael-Michael级联反应;简单而实用的方法,通过手性二苯基脯氨醇TMS醚有效催化,可以有效地获得高度官能化的三取代手性吡咯烷。