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 cascadeaza-Michael-Michaelreaction 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.