Preparation and characterization of novel hybrid nanomaterial catalyst MCM-41@AzaCrown-SB-Cu and its application in synthesis of 1, 2, 3-triazole derivatives in click chemistry

Abstract

Synthesis of efficient and reusable catalyst was carried out by immobilization of azacrown ether onto the covalently linked amine-functionalized mesoporous MCM-41 via a simple method. Application of this linked azacrown ether functionalized MCM-41 catalyst was also investigated as an effective, heterogeneous and host material in the regioselective ring opening and triazole cyclization of epoxides by phenylacetylene and sodiumazide in click reaction. The heterogeneous catalyst was characterized by TGA,XRD,TEM, 1HNMR, 13CNMR and FT-IR techniques. The results of theses analysis showed that, MCM-41@azacrown-Cu with a 22.99% mol loading of copper has given excellent catalytic activity and high efficiency in short time. It is noted that one of the most valuable factors in this work is the recyclability of the catalyst.