Keggin型P-V-Mo-W四元杂多酸催化合成肉桂酸正丁酯的研究  

Synthesis of n-butyl cinnamate Catalyzed by Keggin-type P-V-Mo-W Heteropolyacid

作　　者：尹彦冰[1] 宋瑶[1] 金洺函 

机构地区：[1]齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔161006

出　　处：《高师理科学刊》2014年第1期59-62,共4页Journal of Science of Teachers＇College and University

基　　金：博士后研究人员落户黑龙江科研启动基金(2012)

摘　　要：利用正交实验设计研究了Keggin型P-V-Mo-W四元系列杂多酸H4PVMoxW11-xO40·nH2O(x=1,2,3,4)催化肉桂酸和正丁醇合成肉桂酸正丁酯的反应.结果表明,最佳反应条件为:正丁醇与肉桂酸的物质的量比为1.2∶1,催化剂的用量为肉桂酸质量的0.5%,反应时间为1.5h.该系列杂多酸随着钼、钨原子比例的增加,酯化率提高.n-butyl cinnamate was synthesized with cinnamic acid and n-butyl alcohol by orthogonal experimental design while the Keggin-type P-V-Mo-W heteropolyacids H4PVMoxW11-xO40·nH2O （x=1, 2, 3, 4 ） were chosen as catalysts. The results showed that the optimum conditions are as follows, the mole ratio of n-butyl alcohol to cinnamic acid is 1.2 ： 1, the mass ratio of catalyst to cirmamic acid is 0.5% and reflux time is 1.5 h. Along with the ratio of molybdenum and wolfram atom in this Keggin-type P-V-Mo-W heteropolyacids increasing, the esterification rate was improved.

关 键 词：磷钒钼钨杂多酸 催化酯化 肉桂酸正丁酯 

分 类 号：TQ423.93[化学工程]