微波协同固体超强酸催化合成香料肉桂酸环己酯  

Microwave- assisted catalytic synthesis of cyclohexyl cinnamate by solid superacid catalyst

作　　者：黄飞[1] 屈飞强 任晓琼[1] 李建华[1] 吴文芳[1] 

机构地区：[1]黄山学院化学化工学院,安徽黄山245041

出　　处：《食品工业科技》2015年第9期204-208,共5页Science and Technology of Food Industry

基　　金：国家自然科学基金项目(21071005;21271006);国家级大学生创新创业训练计划项目(201410375003);安徽省大学生创新创业训练项目(AH201310375027);黄山学院自然科学研究项目(2012xkj006)

摘　　要：以肉桂酸和环己醇为原料,用微波协同固体超强酸SO2-4/Ti O2/La3+催化合成了肉桂酸环己酯。通过单因素实验和正交实验考察催化剂种类、催化剂用量、肉桂酸与环己醇物质的量比、微波功率、微波时间对肉桂酸环己酯产率的影响。实验结果表明,肉桂酸环己酯最佳合成条件为:催化剂固体超强酸SO2-4/Ti O2/La3+用量为1.0g,肉桂酸与环己醇物质的量比1∶4,微波功率为600W,微波时间为15min,肉桂酸环己酯产率可达到97.5%。该工艺操作简单,反应条件温和,节约时间,产品纯度高,是一种高效环保的合成工艺。The cyclohexyl cinnamate was synthesized from cinnamic acid and cyclohexanol using solid superacid SO4^2-/ TiO2/ La^3＋ as catalyst with microwave- assisted.The type of catalysts and dosage,the molar ratio of cinnamic acid and cyclohexanol,microwave power and microwave time were explored by single factor experiment and orthogonal experiment. The results showed that optimal conditions of cyclohexyl cinnamate,when the solid superacid SO4^2-/ TiO2/ La^3＋ dosage was 1.0g,the molar ratio of cinnamic acid and cyclohexanol was 1 ∶ 4,microwave power was 600 W,and microwave time was 15 min,the yield of cyclohexyl cinnamate was up to 97.5%.The method has advantages of simple operation,mild reaction conditions,save time,high product purity,it is a high efficient and environmental method for the synthesis of cyclohexyl cinnamate.

关 键 词：肉桂酸环己酯 固体超强酸 微波协同 催化合成 

分 类 号：TS202.3[轻工技术与工程—食品科学]