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E-Journal of Chemistry
Volume 9, Issue 1, Pages 167-170

An Efficient and Inexpensive Synthesis of 2-Substituted Benzimidazoles in Water Using Boric Acid at Room Temperature

Zahed Karimi-Jaberi and Mohammad Amiri

Department of Chemistry, Firoozabad Branch, Islamic Azad University, Firoozabad, Fars, Iran

Received 13 June 2011; Accepted 13 August 2011

Copyright © 2012 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


2-Substituted benzimidazoles have been synthesized in a one-pot reaction from o-phenylenediamine and aldehydes in the presence of boric acid in water at room temperature. The method was proved to be eco-friendly, convenient and the products were isolated with good yields.