苯并咪唑型离子液体的合成及在酯化反应中的应用研究  

Study on Synthesis of Benzimidazolium Ionic Liquids and Application in Esterification Reaction

作　　者：曹楠[1] 吴晓霞[1] 

机构地区：[1]枣庄学院化学化工与材料科学学院,山东枣庄277160

出　　处：《枣庄学院学报》2017年第2期17-23,共7页Journal of Zaozhuang University

摘　　要：以苯并咪唑为原料,采用两步合成法合成了苯并咪唑四氟硼酸盐和硫酸氢盐两类离子液体,并采用红外光谱法对其进行表征.将合成的目标离子液作为催化剂用于苯甲酸与正丁醇的酯化反应中,比较三种不同离子液体对酯化反应产率的影响.实验结果表明,苯并咪唑硫酸氢盐离子液体的催化效果比苯并咪唑四氟硼酸离子液体有更好的催化效果.This paper is based on the benzimidazole as raw material, benzimidazole tetrafluoroborate and hydrogen sulfate two kinds of ionic liquid was synthesized by two step synthesis method, and characterized by Fourier transform infrared spectrosco- py. Synthetic target of ionic liquid as catalyst used in benzoic acid and n - butyl alcohol esterification reaction, comparing three different ionic liquidg influence on the esterification reaction yield. Experimental results showed that benzene and hydrogen sul- fate imidazole salt type ionic liquid catalytic effect than type four fluorine boric acid benzene and imidazole ionic liquids have better catalytic effect.

关 键 词：离子液体 苯并咪唑型 酯化反应 

分 类 号：O621.25[理学—有机化学]