复合固体超强酸SO_4^(2-)/TiO_2-ZrO_2催化合成肉桂酸苄酯  

Composite Solid Superacids SO_4^(2-)/TiO_2-ZrO_2 Catalytic Synthesis of Benzyl Cinnamate Esters

作　　者：熊森[1] 吴洪特[1] 程玄[1] 于兵川[1] Xiong Sen Wu Hongte Cheng Xuan Yu Bingchuan(College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, Chin)

机构地区：[1]长江大学化学与环境工程学院,湖北荆州434023

出　　处：《山东化工》2016年第19期23-26,共4页Shandong Chemical Industry

摘　　要：在硫酸浸渍、焙烧方法制备的SO_4^(2-)/TiO_2-ZrO_2复合固体超强酸的催化作用下,肉桂酸和苄醇直接反应制备了肉桂酸苄酯。经过实验得到:在肉桂酸与苄醇的投料物质的量比为1∶8,加入总投料量6%的催化剂,在130℃温度下,反应4h,所得产品肉桂酸苄酯产率达92%。其催化可剂直接用于下批次产品合成,5次循环使用后,产品的产率仍有90%。Benzyl cinnamate is synthesized by reaction of cinnamic acid with benzyl alcohol under the catalysis of the complex solid superacid SO_4^（2-）/ TiO_2-ZrO_2 whice was prepared by sulfuric acid impregnation and calcinamon. The results of experiment was as following： the molar ratio of the addition in the cinnamon acid and benzyl alcohol was 1 ∶ 8,the amount of catalyst is the total addition amount of 6%,the reaction was carried out at 130 ℃ for 4 hours and the yield of cinnamic acid benzyl ester was92%. The catalytic agent can be directly used for synthesis of the next experiment,and after 5 times repetitive experiments,decrement of the yield was a little.

关 键 词：固体超强酸 催化 肉桂酸苄酯 合成 

分 类 号：TQ655[化学工程—精细化工]