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Journal of Chemistry
Volume 2013, Article ID 108318, 7 pages
http://dx.doi.org/10.1155/2013/108318
Research Article

Zirconyl (IV) Nitrate as Efficient and Reusable Solid Lewis Acid Catalyst for the Synthesis of Benzimidazole Derivatives

Department of Chemistry, Research Centre, S. C. S. College, Omerga, Osmanabad 413 606, India

Received 27 April 2013; Accepted 24 May 2013

Academic Editor: Stojan Stavber

Copyright © 2013 Pratapsinha B. Gorepatil et al. 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.

Abstract

The present paper introduces a simple and efficient method for the synthesis of substituted benzimidazoles by heterocyclization of different o-phenylenediamines and substituted aromatic carboxylic acid/aldehyde in the presence of zirconyl nitrate as catalyst in ethanol under reflux, which produced excellent yield of corresponding benzimidazoles in a short reaction time with reusability of catalyst.