酸性离子液体催化合成食用香料丙酸香茅酯  

Synthesis of Esculent Flavor Citronellyl Propionate by Using Acidic Ionic Liquid as Catalyst

作　　者：张旋[1] 易封萍[1] 孙海洋[1] 

机构地区：[1]上海应用技术学院香料香精技术与工程学院,上海200235

出　　处：《上海应用技术学院学报（自然科学版）》2011年第1期21-24,29,共5页Journal of Shanghai Institute of Technology: Natural Science

基　　金：上海市教委重点项目(11ZZ180)

摘　　要：研究了以含磺酸基离子液体1-(4-磺酸基)丁基-3-甲基吡嗪四氟硼酸盐([4-sulfbmpyrazine][BF4])为酸性催化剂,以香茅醇、丙酸酐为原料合成丙酸香茅酯,采用正交实验方案对合成条件进行了考察。实验结果表明,以酸性离子液体为催化剂合成丙酸香茅酯的较优条件为:n(香茅醇)∶n(丙酸酐)∶n(催化剂)为50∶100∶1,反应温度70℃,反应时间2 h,按优化条件进行验证实验,产品得率为95.3%。[4-sulfbmpyrazine][BF4]催化剂循环使用5次,催化活性基本不变。In this work,it is reported that Citronellyl propionate was prepared from Citronellol and Propionic Anhydride in the presence of sulfonic acidic ionic liquid 1-（4-sulfobutyl）-3-methylpyrazinium tetrafluoroborate（abbreviated as [4-sulfbmpyrazine]） as acidic catalyst.And the proper technological conditions were identified as follows by orthogonal experiments,mole ratio of citronellol,propionic anhydride and catalyst is 50∶100∶1,reaction temperature 70 ℃,reaction time 2hrs.The yield of citronellyl propionate was 95.3%.The acidic functional ionic liquid [4-sulfbmpyrazine] could be recycled for 5 times and the catalytic activity didn＇t reduce.

关 键 词：丙酸香茅酯 离子液体催化 香茅醇 丙酸酐 

分 类 号：TQ655[化学工程—精细化工]