KSF supported 10-molybdo-2-vanadophosphoric acid as an efficient and reusable catalyst for one-pot synthesis of 2,4,5-trisubstituted imidazole derivatives under solvent-free condition

doi:10.1016/S1872-2067(15)60830-0

Abstract

Abstract:

The one-pot three-component cyclocondensation has been developed involving the reaction of benzil with an aromatic aldehydes and ammonium acetate under thermal solvent-free conditions in the presence of a KSF supported 10-molybdo-2-vanadophosphoric acid catalyst. 10-Molybdo-2-vanadophosphoric acid was immobilized on KSF with a 20% loading, which showed the highest catalytic activity. The catalyst was fully characterized using FT-IR spectroscopy, thermal analysis, XRD and SEM analysis techniques. There are several distinct advantages to this protocol, including high yields, short reaction time, operational simplicity and a recyclable catalyst with a facile work-up procedure.

Key words: 2,4,5-Trisubstituted imidazole, Heteropoly acid, 10-Molybdo-2-vanadophosphoric acid, KSF clay, Heterogeneous catalyst

Laxmikant D. Chavan, Sunil G. Shankarwar. KSF supported 10-molybdo-2-vanadophosphoric acid as an efficient and reusable catalyst for one-pot synthesis of 2,4,5-trisubstituted imidazole derivatives under solvent-free condition[J]. Chinese Journal of Catalysis, 2015, 36(7): 1054-1059.

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URL: https://www.cjcatal.com/EN/10.1016/S1872-2067(15)60830-0

https://www.cjcatal.com/EN/Y2015/V36/I7/1054

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