Cu(I)-Catalyzed Three-Component Coupling of Trifluoromethyl Ketone<i>N</i>-Tosylhydrazones, Alkynes and Azides: Synthesis of Difluoromethylene Substituted 1,2,3-Triazoles
作者:Zhikun Zhang、Qi Zhou、Weizhi Yu、Tianjiao Li、Yan Zhang、Jianbo Wang
DOI:10.1002/cjoc.201600888
日期:2017.4
A CuI‐catalyzedthree‐component coupling of trifluoromethyl ketone N‐tosylhydrazones, alkynes and azides has been developed. The reactionrepresents a straightforward method to access difluoromethylene substituted 1,2,3‐triazoles. Mechanistically, it has been proposed that the reaction follows a pathway involving the formation of Cu(I)triazolide intermediate, Cu(I) carbene formation, migratory insertion