中文摘要：

以离子液体为催化剂,在无溶剂体系中,考察了生物质平台化合物甘油转化1,2-甘油碳酸酯的反应.与酸性离子液体和常用无机碱性催化剂相比,碱性离子液体咪唑基1-丁基-3-甲基咪唑（[Bmim]Im）、氢氧化1-丁基-3-甲基咪唑（[Bmim]OH）、咪唑基1-烯丙基-3-甲基咪唑（[Amim]Im）、氢氧化1-烯丙基-3-甲基咪唑（[Amim]OH）在甘油与碳酸二甲酯的酯交换反应中表现出优异的活性.其中,以[Bmim]Im离子液体为催化剂时甘油转化率为98.4%和甘油碳酸酯选择性接近100%.另外,该离子液体可以回收重复利用3次后甘油转化率仍可达92%,甘油碳酸酯选择性可近100%.此碱性离子液体催化方法具有反应结果较好、产物分离简单、条件温和以及环境友好等特点.

英文摘要：

Glycerol has been subjected to a transesterification process with dialkyl carbonate to generate glyc-erol 1,2-carbonate （GC） using different ionic liquids as catalysts under solvent-free conditions. The basic ionic liquids 1-butyl-3-methylimidazolium imidazolium （[Bmim]Im）, 1-butyl-3-methylimidaz-olium hydroxide （[Bmim]OH）, 1-allyl-3-methylimidazolium imidazolium （[Amim]Im）, and 1-allyl-3-methylimidazolium hydroxide （[Amim]OH） worked well as catalysts compared with acidic ionic liquid and inorganic basic catalysts. Subsequent optimization of the reaction conditions using [Bmim]Im as a catalyst led to 98.4%glycerol conversion and up to 100%GC selectivity at 70 ＆#176;C under ambient pressure. The recovery and reuse of these ionic liquids were also satisfactory. [Bmim]Im could be reused three times （i.e., 92.0%glycerol conversion and near 100%GC selectivi-ty）. This method exhibited several special features including a simple product isolation procedure, high product yield, exclusive selectivity, and mild conditions, as well as avoiding the use of any toxic catalysts.