作者:Bin Rong、Qin Yang、Yong Liu、Hong Xu、Yifan Hu、Xuejing Cheng、Baoguo Zhao
DOI:10.1016/j.tetlet.2014.12.031
日期:2015.1
This Letter describes the first catalytic asymmetric alpha-allylic alkylation of thioamides. By using 5 mol % Pd-(R)-DM-BINAP complex as the chiral catalyst, various thioamides were efficiently alpha-allylic alkylated with 1,3-diarylallyl carbonates under mild conditions, affording a variety of alpha-substituted thioamides in good yields with high enantioselectivity and moderate diastereoselectivity. This work represents a useful and direct route to prepare chiral functionalized thioamides. (C) 2014 Elsevier Ltd. All rights reserved.