γ-Selective Addition to 1,1-Difluoroallenes: Three-component Coupling Leading to 2,2-Disubstituted 1,1-Difluoroalkenes
作者:Kohei Fuchibe、Mikiko Ueda、Misaki Yokota、Junji Ichikawa
DOI:10.1246/cl.2012.1619
日期:2012.12.5
1,1-Difluoroallenes underwent γ-selective addition with alkylcopper reagents. The resulting 2,2-difluorovinylcopper intermediates were captured by electrophiles or subjected to palladium-catalyzed coupling to give 2,2-disubstituted 1,1-difluoroalkenes in good yield.
1,1-二氟烯烃与烷基铜试剂进行γ-选择性加成。生成的 2,2-二氟乙烯基铜中间体被亲电体捕获或经钯催化偶联,以良好的产率得到 2,2-二取代的 1,1-二氟烯烃。