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Copper-catalyzed radical trans-selective hydroboration of ynamides with N-heterocyclic carbene boranes

Journal 2022 · IF 6.107 · 发表于 2022 年 8 月 17 日
作者: Kefeng Wang,Qingzhen Yu,Wenli Mao,Yuxin Zheng,Jing Xu,Yukun Wang
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摘要

Vinylboron compounds are important compounds in organic chemistry and biology. In this communication, we developed a copper(I)-catalyzed, highly regio- and stereoselective radical trans -hydroboration of ynamides with N -heterocyclic carbene (NHC)-ligated borane is reported, which leads to a series of trans -boryl enmides that can be conveniently transformed into various multi-substituted enamides. Further investigation showcased that our method is robust and scalable. The mechanism of this unique reaction is studied and discussed.