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| 碱性离子液体催化甘油合成1,2-甘油碳酸酯(英) | |
| 引用本文： | 易宇轩,申越,孙建奎,王波,许凤,孙润仓.碱性离子液体催化甘油合成1,2-甘油碳酸酯(英)[J].催化学报,2014,35(5):757-762. |
| 作者姓名： | 易宇轩 申越 孙建奎 王波 许凤 孙润仓 |
| 作者单位： | a 北京林业大学材料科学与技术学院, 林木生物质化学北京市重点实验室, 北京100083; b 华南理工大学制浆造纸工程国家重点实验室, 广东广州510640 |
| 基金项目： | supported by the National Science and Technology Program of the Twelfth Five-Year Plan Period(2012BAD32B06);Fundamental Research Funds for the Central Universities(TD2011-11);the National Natural Science Foundation of China(31170556);New Century Excellent Talents in University(NCET-13-0671);Beijing Higher Education Young Elite Teacher Project(YETP0765);China Postdoctoral Science Special Foundation(2012T50051);the National Basic Research Program of China(973 Program,2010CB732204)~~ |
| 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. |
| 关 键 词： | 酯交换 甘油 甘油碳酸酯 碱性离子液体 二烷基碳酸酯 平台化合物 |
| 收稿时间： | 2013-11-14 |
Basic ionic liquids promoted the synthesis of glycerol 1,2-carbonate from glycerol |
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| YuxuanYi,Yue Shen,Jiankui Sun,Bo Wang,Feng Xu,Runcang Sun.Basic ionic liquids promoted the synthesis of glycerol 1,2-carbonate from glycerol[J].Chinese Journal of Catalysis,2014,35(5):757-762. | |
| Authors: | YuxuanYi Yue Shen Jiankui Sun Bo Wang Feng Xu Runcang Sun |
| Institution: | a Beijing Key Laboratory of Lignocellulosic Chemistry, College of Materials Science and Technology, Beijing Forestry University, Beijing 100083, China; b State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China |
| Abstract: | Glycerol has been subjected to a transesterification process with dialkyl carbonate to generate glycerol 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-methylimidazolium 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 ℃ 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 selectivity). 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. |
| Keywords: | Transesterification Glycerol Glycerol carbonate Basic ionic liquid Dialkyl carbonate Platform chemcial |
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