Visible light-emitting diode light-driven one-pot four component synthesis of poly-functionalized imidazoles under catalyst and solvent-free conditions

Here, we have demonstrated visible LED light promoted synthesis of poly functionalized imidazole derivatives by the four component condensation of 1,2-diphenyl 1,2-diketone, aromatic aldehydes and ammonium acetate and /or amines in excellent yields. The solvent and catalyst-free reaction conditions, excellent isolated yields of the products, shorter reaction time, simple isolation and purification of products have made the present protocol efficient and green alternatives to those of existing protocols.