摘要/Abstract

壳聚糖是由甲壳素脱乙酰化而得, 是一种丰富可再生的生物质资源. 壳聚糖分子结构中含有大量的羟基、氨基, 与金属纳米粒子或金属离子具有较强的鳌合能力, 被广泛用作载体制备异相催化剂. 近年来, 壳聚糖负载铜催化剂被成功应用于各种不同类型的有机反应中, 不仅具有反应活性高、选择性好、易于分离回收等优点, 而且能够多次循环再利用, 在降低反应成本的同时, 也提升了实际的工业应用价值. 因此, 从不同类型壳聚糖负载铜催化剂的制备出发, 综述其催化的各种类型的有机反应, 主要涉及C—C键和C—X键的构建、点击化学及氧化还原反应等类型, 促进今后壳聚糖及其衍生物负载催化剂更加广泛的应用.
关键词: 壳聚糖负载铜催化剂, 有机反应, 异相催化, 绿色化学, 循环再利用
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.
Key words: chitosan supported copper catalyst, organic reaction, heterogeneous catalysis, green chemistry, recycle and reuse


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