N-甲基-N-丁基吗啉氟硼酸盐离子液体催化合成丁酸乙酯  

Synthesis of Ethyl Butyrate Catalyzed by N-methyl-N-butyl morpholinium Fluoroborate Ionic Liquid

作　　者：李锦辉[1] 张丽静[2] 赵金花[1] LI Jin-hui;ZHANG Li-jing;ZHAO Jin-hua(College of Chemistry and Material Science,Longyan College,Fujian Longyan 364012;Genral Petrochemical plant of Liaohe Petroleum Expolration Brueau,Liaoning Panjin 124022,China)

机构地区：[1]福建省龙岩学院化学与材料学院,福建龙岩364012 [2]辽河石油勘探局石油化工总厂,辽宁盘锦124022

出　　处：《广州化工》2018年第23期43-46,共4页GuangZhou Chemical Industry

基　　金：校产学研项目(No:LC2016002)

摘　　要：以N-甲基吗啉,溴代正丁烷,氟硼酸钠为原料,合成了N-甲基-N-丁基吗啉氟硼酸盐离子液体。将其应用于正丁酸乙酯的催化合成,考察了酸/醇摩尔比,反应温度,离子液体用量和反应时间对酯化率的影响。利用正交实验得出正丁酸乙酯的最佳合成条件为:反应温度110℃,时间3. 0 h,离子液体用量0. 1 g,酸醇摩尔比1∶2. 5。在最佳条件下,进行了验证实验,实验结果显示正丁酸乙酯的酯化率达到56%以上。N-methyl-N-butyl morpholinium fluoroborate ionic liquid was synthesized using N-methyl morpholine, bromo-n-butane and sodium fluoroborate as raw materials.It was applied to the catalytic synthesis of ethyl butyrate,at the same time,the effects of raw material ratio,reaction temperature,dosage of ionic liquid and reaction time on esterification rate were investigated.The optimum preparation conditions were obtained by orthogonal test:reaction temperature was 110℃,reaction time was 3.0h,amount of ionic liquid was 0.1g,molar ratio of acid to alcohol was 1: 2.5.The experimental results showed that the esterification rate of ethyl butyrate was over 56%.

关 键 词：离子液体 N-甲基吗啉 催化合成 丁酸乙酯 

分 类 号：TQ[化学工程]