Synthesis of 2,4,5–Triaryl–1H–imidazoles  Using Silica Sulfuric Acid is an  Inexpensive, Efficient and Mild Catalyst  Under Microwave Irradiation

K.S. Niralwad; I.B.Ghorade; M. S. Shingare

Volume : III, Issue : I, January - 2014

Synthesis of 2,4,5–Triaryl–1H–imidazoles Using Silica Sulfuric Acid is an Inexpensive, Efficient and Mild Catalyst Under Microwave Irradiation

K. S. Niralwad, I. B. Ghorade, M. S. Shingare

Abstract :

Silica sulphuric acid was found to be an efficient catalyst for the green synthesis of 2,4,5-Triaryl-1H-Imidazoles by the coupling of Benzil/Benzoin, aldehyde and ammonium acetate under microwave-irradiation at ambient temperature for appropriate time to furnish the desired product in good to excellent yield. The catalyst provides clean conversion; greater selectivity and easy workup make this protocol practical and economically attractive.