酸性离子液体催化合成柠檬酸三丁酯

目的：以离子液体1-（3-磺酸基）丙基-3-甲基咪唑硫酸盐（PSmim]HSO4]）为催化剂催化合成柠檬酸三丁酯.方法：合成离子液体1-（3-磺酸基）丙基-3-甲基咪唑硫酸盐,并作为催化剂催化合成柠檬酸三丁酯.离子液体与浓硫酸的催化合成TBC的活性差异进行比较. 结果：离子液体催化合成柠檬酸三丁酯催化效率高与浓硫酸,柠檬酸三丁酯平均收率在91.50％,浓硫酸催化TBC平均收率86％.离子液体Psmim]HSO4]与柠檬酸三丁酯均以NMR表征.结论：酸性离子催化合成TBC具有清洁、重复利用、催化活性高及后处理简便等优点.

Synthesis of Tributyl Citrate Catalyzed by Acid Ionic Liquid

Objective： To synthesize Tributyl Citrate （TBC） using ionic liquid 1- （3- sulfonic acid） propyl -3- methyl imidazole sulfate （PSmim]HSO4]） as catalyst . Methods： Ionic liquid 1- （3- sulfonic acid） propyl -3- methyl imidazole sulfate （PSmim]HSO4]） was synthesize. Using ionic liquid and concentrated sulfuric acid as catalyst to synthesize TBC, the catalytic activity differences in the synthesis was compared. Results： The average yield of synthesis of TBC catalyzed by ionic liquid was 91.50% which was more effective role than concentrated sulfuric acid. Ionic liquids and TBC are characterized by NMR. Conclusion; The synthesis of TBC using acid ionic liquid as catalysis is a clean way with high repeated utilization rate, high catalytic activity and easy processing.