摘要
概述了离子液体的类型、特性及其合成方法。对功能化离子液体在Fischer酯化反应、Mannich反应、Friedel-Crafts烷基化反应、醇脱水反应中的应用进行了详细的评述。此外,探索了离子液体催化三聚甲醛和甲缩醛反应合成聚甲氧基二甲醚(CH3-O-(CH2O)n-CH3)低聚物的可行性。研究结果表明,功能化的离子液体表现出较好的催化活性和选择性,获得的产物分子量分布达80～320。
The categories, characteristics and the synthesis techniques of ordinary and task - specific ionic liquids were introduced. Some chemical reactions with use of ionic liquid as catalyst were reviewed, such as Fischer esterification, Mannich reaction, Friedel - Crafts alkylation and alcohol dehydration reaction. A kind of task - specific ionic liquid, 3 - metyl - 1 - （butyl - 4 - sulfonyl） imidazolium trifluoromethanesulfonate, was synthesized. The experiment of synthesis polyoxymethylene dimethyl ethers trioxane and methlal by use of the ionic liquid was carried out. The molecular weight of the resulting product of polyoxymethylene dimethyl ethers （which formula CH3 -O - （CH2O）n -CH3 ）was about 80 - 320.
出处
《山东化工》
CAS
2010年第6期28-31,共4页
Shandong Chemical Industry
关键词
离子液体
催化作用
酯化
烷基化
聚甲氧基二甲醚
ionic liquid
catalysis
esterification
alkylation
aolyoxymethylene dimethyl ethers
