Supported Ionic Liquids on Solid Materials as Catalysts for the Synthesis of Propylene Glycol Methyl Ether
作者:Minh Ngoc Haa、Roger Whiting、Sheng Han、Yuhong Wang
DOI:10.14233/ajchem.2013.13741
日期:——
Ionic liquid 1,1,3,3-tetramethylguanidium lactate was immobilized on three solid supports, MCM-41, silica-gel and attapulgite (Atta), by different methods. The prepared materials were used to catalyze the reaction of propylene oxide and methanol to produce propylene glycol methyl ether. 1-Methoxy-2-propanol was the predominant product. The influence of the amount of the catalyst, molar ratio of the reactants, reaction temperature and time on the yield and selectivity was studied. The three catalysts proved to be efficient reusable catalysts for the reaction.
通过不同的方法将离子液体乳酸 1,1,3,3-四甲基胍固定在三种固体支持物(MCM-41、硅胶凝胶和阿塔(Atta))上。所制备的材料用于催化环氧丙烷和甲醇反应生成丙二醇甲醚。主要产物为 1-甲氧基-2-丙醇。研究了催化剂用量、反应物摩尔比、反应温度和时间对产率和选择性的影响。事实证明,这三种催化剂是该反应的高效可重复使用催化剂。