Samarium(III) Triflate as an Efficient and Reusable Catalyst for the Facile Synthesis of 1,2,4,5-Tetrasubstituted Imidazoles

An efficient, simple, and green four-component reaction for synthesizing 1,2,4,5-tetrasubstituted imidazoles is developed. In present work exploring the use of Samarium triflate as a heterogeneous catalyst aldehydes, aromatic amines, benzil, ammonium acetate. The current approach offers many advantages, such excellent yields, shortening time, reusability catalyst, mild conditions.