肉桂酸正丁酯的非酸催化合成研究  

Nonacidic catalytic synthesis of n-butyl cinnamate

作　　者：刘尚莲[1] 顾准[1] 

机构地区：[1]健雄职业技术学院化学工程系,江苏太仓215411

出　　处：《化学工程师》2008年第11期51-52,55,共3页Chemical Engineer

摘　　要：研究了以硫酸镓催化肉桂酸和正丁醇的酯化反应,考察了醇酸摩尔比、反应时间和催化剂用量对反应结果的影响,对合成的产品用折光率、元素分析和红外光谱进行了表征。实验结果表明,硫酸镓具有催化活性高、易分离回收、重复使用性良好等优点。在最佳反应条件下,肉桂酸正丁酯收率在94%以上。反应结束后,催化剂通过简单的相分离即可重复使用。硫酸镓重复使用4次后,其催化活性无明显下降,产品收率仍可达到90%以上。Gallium Sulfate was used as the catalyst in the esterification of cinnamic acid with butanol. The effects of alcohol / acid molar ratio, reaction time and amount of catalyst have been investigated. The products was characterized by means of refractive index, elemental analysis and FT - IR. Experimental results showed that the catalyst was high activity and could be used repeatedly. Under the optimum reaction conditions the yield can be over 94%. The catalyst can be reused by simple phase - separation after reaction. It is used repeatedly for 4 times without obvious loss of activity and with the yield still over 90.0%

关 键 词：非酸催化 硫酸镓 肉桂酸正丁酯 酯化反应 

分 类 号：O623.624[理学—有机化学]