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One-pot synthesis of 2,4,5-trisubstituted imidazoles using [BPy]H2PO4, an efficient and recyclable catalyst
Yuliang Zhang1, Zhongqiang Zhou
1Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission and Ministry of Education, Hubei Province, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, China.
Abstract:
[BPy]H(2)PO(4) was easily prepared and used as an efficient and recyclable catalyst for the one-pot synthesis of 2,4,5-trisubstituted imidazoles under solvent-free conditions in good to excellent yields. Solvent-free conditions, simple experimental and workup procedures, and the use of a nontoxic, recyclable catalyst of an environmentally benign nature are remarkable features of the procedure.
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