| 对甲苯磺酸铜催化合成草酸二异戊酯 |
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| 引用本文： | 邓斌,俞秋,余瑞金,徐安武. 对甲苯磺酸铜催化合成草酸二异戊酯[J]. 精细石油化工, 2007, 24(3): 38-40 |
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| 作者姓名： | 邓斌 俞秋 余瑞金 徐安武 |
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| 作者单位： | 湘南学院化学与生命科学系,湖南,郴州,423000;中山大学化学与化学工程学院,广东,广州,520275;华南理工大学基础化学实验中心,广东,广州,510640;中山大学化学与化学工程学院,广东,广州,520275 |
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| 基金项目： | 湖南省青年骨干教师培养对象基金项目(湘教通[2004]252)，湖南省教育厅优秀青年科研基金项目(06B089)。 |
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| 摘 要： | 以对甲苯磺酸铜为催化剂,以草酸和异戊醇为原料合成草酸二异戊酯。通过正交实验考察了影响酯化反应的主要因素,确定的最佳合成条件为:草酸用量0.2 mol,n(异戊醇):n(草酸)=3.5;1,催化剂用量1.5 g,20 mL环己烷作带水剂,回流反应2.5 h,酯化率可达98.5%。该催化剂回收简单,重复使用7次后,酯化率仍然大于96%。
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| 关 键 词： | 对甲苯磺酸铜 草酸二异戊酯 催化 |
| 收稿时间： | 2006-12-27 |
| 修稿时间： | 2006-12-272007-04-22 |
SYNTHESIS OF DIISOPENTYL OXALATE CATALYZED BY COPPER p-TOLUENE SULFONATE |
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| Deng Bin,Yu Qiu,Yu Ruijin,Xu Anwu. SYNTHESIS OF DIISOPENTYL OXALATE CATALYZED BY COPPER p-TOLUENE SULFONATE[J]. Speciality Petrochemicals, 2007, 24(3): 38-40 |
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| Authors: | Deng Bin Yu Qiu Yu Ruijin Xu Anwu |
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| Affiliation: | 1. Department of Chemistry and Life Science, Xiangnan University, Chenzhou 423000, Hunan, China; 2. School of Chemistry and Chemical Engineering, Zhongshan University, Guangzhou 510275, Guangdong , China; 3. The Center of Basic Chemistry Experimentation, South China University of Technology, Guangzhou 510640, Guangdong, China |
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| Abstract: | Diisopentyl oxalate was synthesized from oxalic acid and isopentyl alcohol with copper p-tol- uene sulfonate as catalyst.The optimal conditions were:0.2 mol oxalic acid,molar ratio of isopentyl alcohol to oxalic acid 3.5:1,1.5 g catalyst,20 mL cyclohexane as water carrying agent,reaction time 2.5 h at reflux temperature.The esterification yield was up to 98.5% under the optimal condi- tions.Copper p-toluene sulfonate can be reused after simple phase separation.The esterification yield was still up to 96% after the catalyst was reused for 7 times. |
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| Keywords: | copper p-toluene sulfonate diisopentyl oxalate catalysis |
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