β-Cyclodextrin Promoted Oxidation of Cinnamaldehyde to Natural Benzaldehyde in Water  

作　　者：陈鸿雁 纪红兵 

机构地区：[1]School of Ch＇emistry and Ch＇enlical Engineering, the Key Laboratory of Low-carbon Chemistry ＆ Energy Conservation of Guangdong Province, Sun Yat-sen University, Guangzhou 510275, China [2]Department of Chemical Engineering, Huizhou University, Huizhou 516007, China

出　　处：《Chinese Journal of Chemical Engineering》2011年第6期972-977,共6页中国化学工程学报（英文版）

基　　金：Supported by the National＇Natural Science Foundation of China （21036009, 21176268）, the Higher-level Talent Project tor Guangdong Provincial Universities and the Fundamental.Research Funds for the Central Universities.

摘　　要：A facile and efficient procedure has been developed systematically for the oxidative cleavage of cinna-maldehyde to benzaldehyde by sodium hypochlorite with water as the only solvent in the presence of β-cyclodextrin （abbreviated as β-CD）. Different factors influencing cinnamaldehyde oxidation e.g. reaction temperature, the amount of catalyst and oxidant, have been investigated. The yield of benzaldehyde reaches 76% under the optimum conditions （333 K, 4 h, molar ratio of cinnamaldehyde to β-CD is 1：1）. Furthermore, a feasible reaction mecha-nism including the formation of benzaldehyde and the two main byproducts （phenylacetaldehyde and epoxide of cinnamaldehyde） has been proposed.一个灵巧、有效的过程被钠次氯酸盐为 cinnamaldehyde 的氧化劈开系统地开发了到 benzaldehyde 与是的水唯一的溶剂面对 -cyclodextrin (作为 -CD) 缩短了。例如反应温度的不同因素影响 cinnamaldehyde 氧化，催化剂和氧化剂的数量，被调查了。benzaldehyde 的收益在最佳条件下面到达 76%(333 K， 4 h，到 CD 的 cinnamaldehyde 的臼齿的比率是 1:1 ) 。而且，包括 benzaldehyde 和二个主要副产品(cinnamaldehyde 的 phenylacetaldehyde 和 epoxide ) 的形成的可行反应机制被建议了。

关 键 词：oxidative cleavage -CYCLODEXTRIN CINNAMALDEHYDE natural benzaldehyde sodium hypochlorite 

分 类 号：TQ651.2[化学工程—精细化工] TQ221.211