Cobalt-Tetraamide-Phthalocyanine Immobilized on FeO/Chitosan Microspheres As an Efficient Catalyst for Baeyer-Villiger Oxidation

Overview

Journal ACS Omega

Publisher American Chemical Society

Specialty Chemistry

Date 2020 May 20

PMID 32426602

Citations 2

Authors

Zhilin Tang

Jin Xiao

Fei Li

Zhanhu Ma

Li Wang

Fanfan Niu

Xiaoling Sun

Affiliations

Soon will be listed here.

Abstract

Cobalt-Tetraamide-Phthalocyanine (CoTaPc) immobilized onto magnetic FeO chitosan microspheres (FeO/CTO) was synthesized via a simple immersion method, which is an efficient catalyst for the oxidation of cyclic ketones to lactones with O/benzaldehyde as the oxidant. The CoTaPc-FeO/CTO catalyst was applied for the first time in the Baeyer-Villiger (B-V) oxidation reaction. Characterization results obtained from X-ray diffraction, UV-vis, Fourier transform infrared, and scanning electron microscopy showed that the combination of CoTaPc and magnetic FeO/CTO microspheres was achieved. The catalyst could be easily separated from the reaction system with an external magnet and reused several times without the remarkable loss of activity. In addition, a possible radical mechanism for the B-V oxidation in this catalytic system is proposed and verified by controlled experiments.

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