1-(4-chloro-benzenesulfonyl)-2-methyl-1H-benzoimidazole;1-<4-Chlor-benzol-sulfonyl>-2-methyl-benzimidazol;1-(4-Chlor-benzolsulfonyl)-2-methyl-benzimidazol;Cambridge id 5260321;1-(4-chlorophenyl)sulfonyl-2-methylbenzimidazole
Benzazoles. 3*. Synthesis and arylsulfonylation of 2-substituted benzimidazoles
摘要:
2-Alkylbenzimidazoles have been obtained from o-nitroaniline and aliphatic carboxylic acids by reductive cyclization. Interaction of the former with arenesulfonyl chlorides led to the synthesis of 2-alkyl-1-arylsulfonylbenzimidazoles, the yield of which depended on the structure of the substituent in position 2.
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.