离子液体催化二氧化碳合成环状碳酸酯的研究进展

概述了以离子液体作为催化剂或作为反应介质,用CO2合成环状碳酸酯的研究进展。离子液体是固定CO2产生环状碳酸酯的适宜催化剂和溶剂,离子液体的话性可以通过添加本身并无活性或低活性的Lewis酸性金属卤化物或金属配合物得到改善。使用离子液体使得合成过程变得更加绿色和简单,因为产品易分离,催化剂可以循环利用,而且不必使用挥发性有害的有机溶剂。

Development of Cyclic Carbonate Synthesis from CO2 Using Ionic Liquids

The recent development in the synthesis of cyclic carbonate from CO_2 using ionic liquids as catalyst and/or reaction medium was reviewed.Some ionic liquids were suitable catalysts and/or solvents to the CO_2 fixation to produce cyclic carbonate.The activity of ionic liquid was greatly enhanced by the addition of Lewis acidic compounds of metal halides or metal complexes that had no or low activity by themselves.Using the ionic liquids,the synthesis process became greener and simpler because of easy product separation and catalyst recycling and unnecessary use of volatile and harmful organic solvents.