Bench-Stable 5-Stannyl Triazoles by a Copper(I)-Catalyzed Interrupted Click Reaction: Bridge to Trifluoromethyltriazoles and Trifluoromethylthiotriazoles
作者:Fang Wei、Tong Zhou、Yudao Ma、Chen-Ho Tung、Zhenghu Xu
DOI:10.1021/acs.orglett.7b00701
日期:2017.4.21
Metalated triazoles are the key reactive intermediate of the current click reaction (CuAAC). Bench-stable 5-stannyl triazoles are obtained by a copper-catalyzed interrupted click reaction of easily available terminal alkynes. Subsequent palladium-catalyzed cross-coupling reactions, electrophilic trifluoromethylthiolation and trifluoromethylation, generate diverse 1,4,5-trisubstituted triazoles efficiently
金属化的三唑是电流点击反应(CuAAC)的关键反应中间体。稳定的5-锡烷基三唑是通过铜催化的易获得的末端炔烃的间断点击反应而获得的。随后的钯催化的交叉偶联反应,亲电子的三氟甲基硫醇化和三氟甲基化,可以有效地生成各种1,4,5-三取代的三唑,而传统的点击反应是无法完成的。