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| 碳酸二甲酯酯交换合成碳酸二月桂酯 | |
| 引用本文： | 钱锦华,王庆印,王公应,索继栓.碳酸二甲酯酯交换合成碳酸二月桂酯[J].精细化工,2006,23(4):403-406. |
| 作者姓名： | 钱锦华 王庆印 王公应 索继栓 |
| 作者单位： | 1. 中国科学院,兰州化学物理研究所,甘肃,兰州,730000;中国科学院,研究生院,北京,100039 2. 中国科学院,成都有机化学研究所,四川,成都,610041;中国科学院,研究生院,北京,100039 3. 中国科学院,成都有机化学研究所,四川,成都,610041 4. 中国科学院,兰州化学物理研究所,甘肃,兰州,730000;中国科学院,成都有机化学研究所,四川,成都,610041 |
| 摘 要： | 用正交实验法,对碳酸二甲酯(DMC)与月桂醇酯交换合成碳酸二月桂酯的催化剂,进行了筛选,对反应条件进行了优化,发现K2CO3具有较高的催化活性,得到最佳反应条件为:催化剂碳酸钾(K2CO3)用量为原料总质量的0.5%,n(碳酸二甲酯)∶n(月桂醇)=1∶4,反应时间4 h,反应温度140℃。在该条件下DMC的单程转化率为59.4%,碳酸二月桂酯产率55.3%,甲基十二烷基碳酸酯产率4.1%,碳酸二月桂酯选择性93%,未反应的DMC与月桂醇可以循环使用。 |
| 关 键 词： | 碳酸二甲酯 碳酸二月桂酯 酯交换法 |
| 文章编号： | 1003-5214（2006）04-0403-04 |
| 收稿时间： | 2005-05-17 |
| 修稿时间： | 2005-05-172005-10-10 |
Synthesis of Didodecyl Carbonate by Catalytic Transesterification |
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| QIAN Jin-hua,WANG Qing-yin,WANG Gong-ying,SUO Ji-shuan.Synthesis of Didodecyl Carbonate by Catalytic Transesterification[J].Fine Chemicals,2006,23(4):403-406. | |
| Authors: | QIAN Jin-hua WANG Qing-yin WANG Gong-ying SUO Ji-shuan |
| Affiliation: | 1. Lanzhou Institute of Chemical Physics, The Chinese Academy of Sciences, Lanzhou 730000, Gansu, China ; 2. Chengdu Institute of Organic Chemistry, The Chinese Academy of Sciences, Chengdu 610041, Sichuan, China; 3. The Graduate School of the Chinese Academy of Sciences, Beijing 100039, China |
| Abstract: | Synthesis of didodecyl carbonate by transesterification of dimethyl carbonate and dodecanol were studied by the method of orthogonal experiment.K_2CO_3 was found to have high catalytic activity.According to the experiment,the suitable reaction conditions are:reaction time 4 h,reaction temperature 140 ℃,n(DMC)∶n(dodecanol)=1∶4 and w(K_2CO_3)=0.5%.The conversion of DMC was 59.4%,the yield of didodecyl carbonate was 55.3%,the selectivity for didodecyl carbonate was 93%,and the yield of methyl dodecyl carbonate was 4.1%. |
| Keywords: | dimethyl carbonate didodecyl carbonate transesterification |
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