Copper-Catalyzed One-Pot Synthesis of Substituted Benzimidazoles
作者:Hongwei Jin、Xiaoliang Xu、Jianrong Gao、Jianhua Zhong、Yanguang Wang
DOI:10.1002/adsc.200900706
日期:2010.2.15
A copper-catalyzedone-potsynthesis of functionalized benzimidazoles has been developed. The procedure combines the copper-catalyzed three-component cascade reaction of sulfonylazides, alkynes and 2-bromoaniline and the copper-catalyzed intramolecular N-arylation of sulfonamides in one sequence, which afforded the products in moderate to good yields.
Convenient sulfonylation of imidazoles and triazoles using NFSI
作者:Kun Jie、Yufeng Wang、Ling Huang、Shengmei Guo、Hu Cai
DOI:10.1080/17415993.2018.1480725
日期:2018.9.3
ABSTRACT A protocol for the synthesis of N-sulfonyl imidazoles and triazoles has been achieved using N-Fluorobenzenesulfonimide as a sulfonyl source. This reaction proceeded well in the absence of strong bases and catalysts, providing a convenient alternative method for the preparation of N-sulfonyl imidazoles as well as triazoles. GRAPHICAL ABSTRACT