双三羟甲基丙烷正辛酸酯的合成  

Synthesis of the di-trimethylolpropane octanoate

作　　者：宋岩[1,2] 李延春[1] 徐淑飞[1] 王恒国[1] 孙明达[1] 费小亮[1] 孙磊[1] 王帅[1] 李耀先[1] 杨清彪[1] 

机构地区：[1]吉林大学化学学院,吉林长春130061 [2]吉林化工学院工程与材料学院,吉林吉林132022

出　　处：《应用化工》2010年第4期526-528,共3页Applied Chemical Industry

基　　金：吉林省科技厅重点项目(20080308)

摘　　要：以双三羟甲基丙烷与正辛酸为原料,对甲基苯磺酸为催化剂,采用酸醇酯化法合成了双三羟甲基丙烷正辛酸酯。考察了反应物投料比、反应时间、催化剂用量等对反应的影响。结果证明,最佳反应条件为:酸醇摩尔比4.4∶1,催化剂用量为双三羟甲基丙烷质量的1.0%,带水剂为双三羟甲基丙烷质量的60%,反应温度为120℃,加热回流4 h。在此工艺条件下,产品颜色浅,产率高达97.28%。并用红外光谱、核磁等方法进行了定性分析。Di-trimethylolpropane （di-tmp） octanoate was prepared by using di-trimethylolpropane and caprylic acid as raw materials and p-toluenesulfonic acid as catalyst. The effect of the reactants feed ratio, reaction time and amount of catalyst on reaction was studied. The results showed that the optimum reaction conditions were as follows：molar ratio of acid to alcohol is 4.4：1 and catalyst amount is 1.0% percent of the di-tmp and toluene is 60% percent of the di-tmp,the reaction temperature is 120 ℃ ,and reflux for 4 h. Under this condition, the yield is un to 97.28%. The product was analysed by IR,NMR.

关 键 词：双三羟甲基丙烷正辛酸酯 酯化 合成 

分 类 号：TQ630.7[化学工程—精细化工]