CuI-Catalyzed Amination of Arylhalides with Guanidines or Amidines: A Facile Synthesis of 1-H-2-Substituted Benzimidazoles

被引:103
作者
Deng, Xiaohu [1 ]
McAllister, Heather [1 ]
Mani, Neelakandha S. [1 ]
机构
[1] Johnson & Johnson Pharmaceut Res & Dev, San Diego, CA 92121 USA
关键词
N BOND FORMATION; EFFICIENT METHOD; CASCADE REACTIONS; VINYL HALIDES; ARYL HALIDES; ANTAGONISTS; IMIDAZOLES; POTENT; HYDROCHLORIDES; HETEROCYCLES;
D O I
10.1021/jo900912h
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
CuI/L5 (N,N'-dimethylethylenediamine) proves to be an efficient catalyst system for the amination of arylhalides with guanidines. The same catalyst system is then successfully applied to the one-step synthesis of 1-H-2-aminobenzimidazoles through tandem aminations of 1,2-dihaloarenes in modest yields. This methodology is also applicable for the preparation of I-H or 1-substutituted 2-aryl- or 2-alkyl-benzimidazoles.
引用
收藏
页码:5742 / 5745
页数:4
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