Facile Method for One-Step Synthesis of 2,4,5-Triarylimidazoles Under Catalyst-Free, Solvent-Free, and Microwave-Irradiation Conditions

A green and efficient method for the synthesis of 2,4,5-triarylimidazoles by one-step condensation reaction of benzil, aromatic aldehyde, and ammonium acetate under catalyst-free, solvent-free, and microwave-irradiation conditions is reported. This method had many dramatic advantages, such as the short reaction time (3-5min), good yields (80-99%), environmental friendliness, and convenient operation.