Fe3O4/SiO2 decorated trimesic acid-melamine nanocomposite: A reusable supramolecular organocatalyst for efficient multicomponent synthesis of imidazole derivatives

Abstract

Abstract This article describes supramolecular Fe3O4/SiO2 decorated trimesic acid-melamine nanocomposite that can be prepared with features that combine properties of different materials to fabricate a structurally unique hybrid material. In particular, we have focused on design, synthesis and evaluation a heterogeneous magnetic organocatalyst with acidic functional-groups for synthesis of biologically important imidazole derivatives in good-to-excellent yields. The introduced Fe3O4/SiO2-TMA-Me were characterized by different techniques such as FTIR, XRD, EDX, FESEM, TEM and TGA. As a noteworthy point, the magnetic catalyst system can be recycled and reused for more than seven consecutive cycles while its high catalytic activity remains.