作者:Kai Sun、Yali Li、Ranran Feng、Shiqiang Mu、Xin Wang、Bing Zhang
DOI:10.1021/acs.joc.9b02941
日期:2020.1.17
Here, we report a practical C-H imidation of five-membered heterocycles under metal-free conditions. We also report the first dual C-H bond aminobromination of thiophenes, with benzotriazole, saccharin, 1,2,4-triazole, benzimidazole, pyrazole, 4-bromopyrazole, 5-methyltetrazole, and dibenzenesulfonimides as effective amine sources. Mechanistic studies support the radical pathway of the imidation and aminobromination reactions.