CH Functionalization/CN Bond Formation: Copper-Catalyzed Synthesis of Benzimidazoles from Amidines
作者:Gordon Brasche、Stephen L. Buchwald
DOI:10.1002/anie.200705420
日期:2008.2.22
Electrochemical Synthesis of Benzimidazoles via Dehydrogenative Cyclization of Amidines
作者:Huai‐Bo Zhao、Jin‐Liang Zhuang、Hai‐Chao Xu
DOI:10.1002/cssc.202100254
日期:2021.4.9
sustainable methodologies for the synthesis of N‐heterocycles is a constant focus of organic synthesis. Herein an electrochemical method is reported for the synthesis of benzimidazoles through dehydrogenative cyclization of easily available N‐aryl amidines. The reactions were conducted under simple constant current conditions in an undivided cell without need for catalysts, chemical oxidants, or additives, and