Brønsted acid ionic liquid [Et3NH][HSO4] as an efficient and reusable catalyst for the synthesis of 2,4,5-triaryl-1H-imidazoles
Tóm tắt
A simple and efficient procedure for synthesis of 2,4,5-triaryl-1H-imidazoles by one-pot three-component condensation of aromatic aldehydes, benzil and ammonium acetate under solvent-free conditions using ionic liquid [Et3NH][HSO4] as catalyst is described. The remarkable features of this procedure are high yields, cleaner reaction profiles, use of non-toxic, easily available, cheap, recyclable catalyst, which also has an environmentally benign nature, and simple experimental and work-up procedures.
Tài liệu tham khảo
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