Construction of highly enantioenriched spirocyclopentaneoxindoles containing four consecutive stereocenters via thiourea-catalyzed asymmetric Michael–Henry cascade reactions
作者:Yonglei Du、Jian Li、Kerong Chen、Chenglin Wu、Yu Zhou、Hong Liu
DOI:10.3762/bjoc.13.131
日期:——
thiourea-catalyzed asymmetricsynthesis of highly enantioenriched spirocyclopentaneoxindoles containing chiral amide functional groups using simple 3-substituted oxindoles and nitrovinylacetamide as starting materials was achieved successfully. This protocol features operational simplicity, highatomeconomy, and highcatalytic asymmetry, thus representing a versatile approach to the synthesis of highly enantioenriched