✦ LIBER ✦

Synthesis of Novel Unsymmetric Bisbenzimidazoles

✍ Scribed by Zhengzhou Mao; Zhaoyang Wang; Wenjie Mei; Kai Yang

Publisher: John Wiley and Sons
Year: 2010
Tongue: English
Weight: 83 KB
Volume: 28
Category: Article
ISSN: 0256-7660
DOI: 10.1002/cjoc.201090152

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✦ Synopsis

Abstract

Using chloroacetic acid, p‐hydroxyl aromatic aldehydes 1 and aromatic diamines 3 as starting materials, novel bisbenzimidazoles 5 with unsymmetric structure were synthesized via aryloxyacetic acid intermediates 2. Four new intermediates 4 and ten target molecules 5 were characterized by FTIR, ^1^H NMR, ^13^C NMR, MS and elemental analysis. Different synthetic methods, including one‐pot synthesis and intermittent microwave promotion, were investigated. The research provides a new method and idea for the synthesis of bisbenzimidazoles.

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