Citation: Madhudeepa Dey, Krishnajyoti Deb, Siddhartha Sankar Dhar. VO(acac)₂ catalyzed condensation of o-phenylenediamine with aromatic carboxylic acids/aldehydes under microwave radiation affording benzimidazoles[J]. Chinese Chemical Letters, ;2011, 22(3): 296-299. doi: 10.1016/j.cclet.2010.10.031 shu

VO(acac)₂ catalyzed condensation of o-phenylenediamine with aromatic carboxylic acids/aldehydes under microwave radiation affording benzimidazoles

Department of Chemistry, National Institute of Technology, Silchar, Silchar 788010, Assam, India

Received Date: 28 June 2010

Fund Project: We are grateful to the Department of Science and Technology (DST), New Delhi, Government of India for providing financial support (SR/FTP/CS-100/2007).

Vanadyl acetylacetonate, VO(acac)₂, has been found to be very effective catalyst for synthesis of a variety of benzimidazoles under solvent-free condition. The methodology involves the exposure of a mixture of o-phenylenediamine and a selected aromatic carboxylic acid/aldehyde to microwave radiation without the use of any solvent or supporting agents. The benzimidazoles were obtained in quick time with high yields.
- Vanadyl acetylacetonate,
- o-Phenylenediamine,
- Microwave irradiation,
- Solvent-free
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