Novel Bronsted acidic ionic liquid as efficient and reusable catalyst system for esterification

被引：284

作者：

Gui, JZ

Cong, XH

Liu, D

Zhang, XT

Hu, ZD

Sun, ZL ^{[1
]}

机构：

[1] Liaoning Univ Petr & Chem Technol, Ctr Petrochem Engn, Liaoning 113001, Peoples R China

[2] Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China

来源：

CATALYSIS COMMUNICATIONS | 2004年 / 5卷 / 09期

基金：

中国国家自然科学基金;

关键词：

ionic liquid; Bronsted acid; esterification; catalyst;

D O I：

10.1016/j.catcom.2004.06.004

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Under mild conditions and without any additional organic solvent, esterification of alcohols by carboxylic acids could be carried out in three new halogen-free Bronsted acidic ionic liquids, 1-(4-sulfonic acid) butyl-3-methylimidazolium hydrogen sulfate, 1-(4-sulfonic acid) butylpyridinium hydrogen sulfate and N-(4-sulfonic acid)butyl triethylammonium hydrogen sulfate. Especially for esterification of ethanol by acetic acid, good conversion rate and high selectivity were obtained, and the liquid esters formed a separate phase that was decanted. The ionic liquid could be reused after removal of water under vacuum.

引用

页码：473 / 477

页数：5

共 20 条

[1] Novel bronsted acidic ionic liquids and their use as dual solvent-catalysts [J].