糠酸乙酯合成的初步探讨  

A Tentative Study on the Synthesis of Ethyl Furoate

作　　者：王学松[1] 纪延光[1] 

机构地区：[1]淮海工学院化学工程系,江苏连云港222005

出　　处：《淮海工学院学报（自然科学版）》2002年第1期42-44,共3页Journal of Huaihai Institute of Technology:Natural Sciences Edition

基　　金：淮海工学院自然科学基金资助项目 ( 2 0 0 0 -10 0 4)

摘　　要：介绍了以糠酸和乙醇为原料 ,以浓硫酸为催化剂、苯为带水剂合成糠酸乙酯的方法。通过对反应温度、催化剂 (浓 H2 SO4 )用量、乙醇的用量和反应时间等方面进行的实验研究 ,最后得出最佳反应条件是 :反应温度为 6 8～ 70℃ ,酸醇物质的量之比是 1∶ 4,催化剂用量为 1 0～ 1 2滴 ,反应时间为4～ 5 h。平均产率为 82 .5 %。Ethyl furoate is synthesized by a new method with α furancarboxyic acid and ethanol as the materials, concentrated H 2SO 4 as the catalyst and benzene as the dehydrating agent. Experiments on the reaction temperatures, the dosages of catalyst(concentrated H 2SO 4) and alcohol and the reaction time show that the optimum reaction condition is as follows: the reaction temperature being 68\|70 ℃,the ratio of acid and ethanol being 1∶4, the dosage of catalyst being 10\|12 drops and the reaction time being 4\|5 hours. The average yield by the method is 82.5%.

关 键 词：糠酸乙酯 合成香料 呋喃类香料 反应温度 反应时间 催化剂 合成 

分 类 号：TQ651.1[化学工程—精细化工]