| 对甲苯磺酸铜催化合成丙二酸二乙酯 |
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| 引用本文： | 王勤,罗志臣.对甲苯磺酸铜催化合成丙二酸二乙酯[J].化工科技,2010,18(4):13-15. |
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| 作者姓名： | 王勤 罗志臣 |
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| 作者单位： | 扬州工业职业技术学院化学工程系,江苏扬州225127 |
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| 摘 要： | 以丙二酸和乙醇为原料,采用甲苯磺酸铜作催化剂合成丙二酸二乙酯。考察了催化剂用量、酸醇物质的量比、带水剂用量以及反应时间等因素对收率的影响。确定最佳酯化反应条件:n(丙二酸)=0.1 mol,n(乙醇)=0.3 mol,对甲苯磺酸铜1.0 g,带水剂环己烷20 mL,反应时间60 min。收率可达93.3%。
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| 关 键 词： | 丙二酸二乙酯 丙二酸 对甲苯磺酸铜 酯化 |
Synthesis of diethyl malonate by copper p-toluene sulfonate |
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| WANG Qin,LUO Zhi-chen.Synthesis of diethyl malonate by copper p-toluene sulfonate[J].Science & Technology In Chemical Industry,2010,18(4):13-15. |
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| Authors: | WANG Qin LUO Zhi-chen |
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| Affiliation: | (Chemical Engineering Department of Yangzhou Professional Polytechnic Institute,Yangzhou 225127,China) |
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| Abstract: | Diethyl malonate was synthesized from malonic acid and ethanol over copper p-toluene sulfonate.The influencing factors were investigated.Experimental results indicated that the optimum conditions are as follows：n（malonic acid） 0.1 mol,n（ethano1） 0.3 mol,copper p-toluene sulfonate 1.0 g,dosage of water-carrying agent 20 mL,reaction time 60 min.The percentage of yield can be up to 93.3%. |
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| Keywords: | Diethyl malonate Malonic acid Copper p-toluene sulfonat Esterification |
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