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Short Paper | Regular issue | Vol 87, No. 7, 2013, pp.1545-1552
Published online, 4th June, 2013
DOI: 10.3987/COM-13-12734
Microwave-Assisted Syntehsis of 2-Substituted 1H-Benzo[d]imidazoles and Their Antifungal Activities in vitro

Tao Zhang, Liang-Zhu Huang, Jia Wu, Dong Lu, Bo-Lin Ma, and Zhen-Ting Du*

*College of Science, Northwest A&F University, Yangling 712100, Shaanxi Province, China

Abstract

An efficient and novel microwave-assisted synthesis of 1H-benzo[d]imidazole derivatives via nitriles and o-phenyldiamines in the presence of polyphosphoric acid (PPA) and phosphoric acid is described. This method provides several advantages such as commercially high availabilities of starting materials, short reaction times, high yields and a simple workup procedure. Systematically antifungal biological tests showed 3f was most promising candidate against six phytopathogenic fungi.