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Note | Regular issue | Vol 60, No. 6, 2003, pp.1457-1460
Published online, 14th April, 2003
DOI: 10.3987/COM-03-9760
Microwave-assisted Synthesis of Aryl and Heteroaryl Derivatives of Benzimidazole

Haitao Yu, Hirohisa Kawanishi, and Hideko Koshima*

*Department of Applied Chemistry, Faculty of Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama, 790-8577 Ehime, Japan

Abstract

A series of benzimidazoles containing aryl and heteroaryl substituents were efficiently and quickly synthesized by condensation of 1,2-phenylenediamine with carboxylic acids in the presence of polyphosphoric acid under microwave irradiation.