Citation: Ganesh R. Jadhav, Mohammad U. Shaikh, Rajesh P. Kale, Charansingh H. Gill. Ammonium metavanadate: A novel catalyst for synthesis of 2-substituted benzimidazole derivatives[J]. Chinese Chemical Letters, ;2009, 20(3): 292-295. doi: 10.1016/j.cclet.2008.09.057 shu

Ammonium metavanadate: A novel catalyst for synthesis of 2-substituted benzimidazole derivatives

a Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, Maharashtra 431 004, India;
b Division of Medicinal Chemistry, Wockhardt Research Centre, D-4, Chikalthana M. I. D. C. Area, Aurangabad, Maharashtra 431 210, India

Received Date: 1 September 2008

Fund Project: The authors are thankful to The Head of Department of Chemistry, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, for providing laboratory facility.

Ammonium metavanadate (10 mol%) was found to be a useful catalyst for the synthesis of various 2-substituted aryl benzimidazoles. It was used as an oxidizing agent for the condensation of o-phenylenediamine with different substituted aryl aldehydes at room temperature in ethanol. The method was proved to be simple, convenient and the product was isolated with good yields (79-91%).
- Ammonium metavanadate,
- Oxidation,
- Aryl aldehyde,
- Benzimidazole
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