Synthesis and characterization of Cu–N, N′-Dicyclohexylcarbodiimide supported on CMK-3 as a novel, efficient and recoverable nanocatalyst for synthesis of tetrazole, polyhydroquinoline, and sulfoxide derivatives

Mesoporous carbon CMK-3 was prepared using SBA-15 silica mesoporous as a hard template. Then, Cu–N, N′-Dicyclohexylcarbodiimide was supported on CMK-3 as a reusable and highly efficient nanocatalyst for the synthesis of tetrazole, polyhydroquinoline, and sulfoxide derivatives. This new catalyst was characterized by FT-IR spectroscopy, XRD, SEM, BET, TGA, EDX, and ICP-OES techniques. After completing reactions, the catalyst was easily separated from the reaction mixture using centrifuge and reusable five times without significant loss of their catalytic efficiency.