3D-Network porous polymer bonded metalloporphyrin: An efficient and reusable catalyst for the Baeyer-Villiger oxidation

A new, green catalyst was prepared through immobilization of metalloporphyrin on the surface of 3D-network polymer based on calix[4]resorcinarene (PC4RA), which efficiently catalyze B-V oxidation reaction using O-2/benzaldehyde. The catalyst demonstrated excellent activity, which is highly potential for cyclic aliphatic ketones oxidation under mild conditions. IR spectroscopy, UV-Vis spectroscopy, thermal gravimetric analysis, energy dispersive spectroscopy and scanning electron microscopy are some of the spectroscopic methods used to characterize the new synthesized solid support. The synthesis of a novel, green and recoverable heterogeneous catalyst was investigated by grafting Cu-porphyrin on the surface of polymeric calix[4]resorcinarene for Baeyer-Villiger oxidation. The catalyst demonstrated excellent activity, especially in the case where cyclic aliphatic ketone oxidation was easily perfomed under mild conditions with high yields.