Research Progress of Chitosan Supported Copper Catalyst in Organic Reactions

Chitosan is obtained by deacetylation of chitin and is a kind of abundant renewable biomass resource.The molecular structure of chitosan contains a large number of hydroxyl and amino groups, which have strong bonding ability with metal nanoparticles or metal ions.Thus it has been widely used to support various metal particles for the preparation of catalysts.In recent years, chitosan supported copper catalyst has been successfully applied in various types of organic reactions.It has the advantages of high reactivity, good selectivity, easy separation, and can also be reused for many times, which reduces the reaction cost and improves the actual industrial application value.Therefore, based on the preparation of different types of chitosan supported copper catalysts, various types of organic reactions are reviewed, mainly involving the constructions of C-C bond and C-X bond, click chemistry and oxidation/reduction reactions.It will promote the application of chitosan and its derivatives-supported catalysts in the future.