Convenient Method for the Preparation of 2‐Aryl‐1H‐benzimidazole‐4‐carboxylic Acids

Author: Cheng Jun   Xiu Naiyun   Li Xiangbin   Luo Xianjin  

Publisher: Taylor & Francis Ltd

ISSN: 0039-7911

Source: Synthetic Communications, Vol.35, Iss.18, 2005-09, pp. : 2395-2399

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Abstract

The oxidative cyclization of 2,3-diaminobenzoic acid and aromatic aldehydes to give 2-aryl-1H-benzimidazole-4-carboxylic acids is reported. Moreover, three methods were compared in different perspectives from experimental manipulation to yield.

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