<i>N</i>-Heterocyclic Carbene-Catalyzed Stereoselective Cascade Reaction: Synthesis of Functionalized Tetrahydroquinolines
作者:Hai-Rui Zhang、Zhen-Wen Dong、Yu-Jie Yang、Ping-Luan Wang、Xin-Ping Hui
DOI:10.1021/ol4024985
日期:2013.9.20
The first N-heterocyclic carbene-catalyzed stereoselective aza-Michael–Michael–lactonization cascade reaction of 2′-aminophenylenones and 2-bromoenals for the construction of chiral functionalized tetrahydroquinolines with three consecutive stereogenic centers has been achieved in high yields (up to 98%) with excellent diastereo- (>25:1) and enantioselectivities (up to 98.7% ee).
2'-氨基苯基烯酮和2-溴烯醛的第一个N-杂环卡宾催化的立体选择性aza-Michael-Michael-内酯化级联反应,用于构建具有三个连续立体中心的手性官能化四氢喹啉,产率高达98% ),具有出色的非对映体(> 25:1)和对映体选择性(最高可达98.7%ee)。