Bronsted Acidic Ionic Liquids Supported Synthesis of Diethyl Malonate and Its Characterization
1.Introduction To date,most chemical reactions have been carried out in molecular solvents.For two millennia,most of our understanding of chemistry has been based upon the behavior of molecules in the solution phase in molecular solvents.Most widely used solvents for modem chemical reaction and materials synthesis are organics that have potential pollution and toxic implications.Minimizing pollution has become a major concern for chemical industry.In recent years,ionic liquids have gained a great deal of both academic and industrial attention worldwide as a new class of compounds for a potential effective green replacement of conventional organic solvents for long-lasting development of human society.Examples of ionic liquids consisting of a simple salt are given in Scheme 1.Most of them are considered safer and more environmental than organic solvents because they do not evaporate.These solvents are often fluid at room temperature, and consist entirely of ionic species.They have many fascinating properties which make them of fundamental interest to all chemists,since both the thermodynamics and kinetics of reactions carried out in ionic liquids are different to those in conventional molecular solvents, then the chemistry is different and unpredictable at our current state of knowledge.They have attracted,quite justifiably,enormous attention as media for green synthesis and this study attempts to use bronsted acidic ionic liquids as solvent for the synthesis of diethyl malonate.
ionic liquid malonic acid ethanol ethyl malonate esterification
Jianling He Zhimin Lv
School of Chemical and Biological Engineering,Yancheng Institute of Technology,Yancheng 224003,China
国际会议
江苏镇江
英文
378-379
2008-10-15（万方平台首次上网日期，不代表论文的发表时间）