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.
Enantioselective Cascade Michael-Michael Reactions and Related Catalysts
申请人:Wang Wei
公开号:US20110172438A1
公开(公告)日:2011-07-14
The invention provides direct processes and related catalysts for the syntheses of trisubstituted chiral pyrrolidines, piperidines, tetrahydrothiophenes, and thianes by highly enantio- and diastereoselective cascade Michael-Michael reaction of α, β-unsaturated aldehydes with trans-γ-protected amino α, β-unsaturated esters.