摘要
四氯化锡能够代替硫酸用作酯化催化剂 ,在五水四氯化锡催化下合成了肉桂酸乙酯 ,考察了n(肉桂酸 )、n(乙醇 )、反应时间、n(四氯化锡 )等因素对反应的影响 ,结果表明 :当n(肉桂酸 )∶n(乙醇 )∶n(四氯化锡 ) =1∶7.5∶0 .2 2 ,回流时间 3h ,酯收率达 91.4 %。同时用折射率、元素分析和红外光谱进行了表征 ,产品完全合格。
Stannic chloride can use as catalyst for esterification instead of sulfuric acid. Ethyl cinnamate is synthesis under the catalysis of pentahydrate stannic chloride, Various factors such as n(cinnamic acid), n(ethyl alcohol), reaction time and n(stannic chloride) which would influence the reaction are investigated. The results show that the The yield of the ester can reach 91.4% under the conditions the n(cinnamic acid)∶ n(ethyl alcohol)∶ n(stannic chloride)=1∶7.5∶0.22, reaction time 3 h. At the same time, refractive index, elementary analysis and Infrared spectroscopy is used to characterize the product. The product accord with structure.
出处
《娄底师专学报》
2003年第2期21-22,共2页
Journal of Loudi Teachers College
关键词
肉桂酸乙酯
合成
四氯化锡
催化
ethyl cinnamate
synthesis
stannic chloride
catalyst
