| 电化学还原和羧化肉桂酸乙酯的研究 |
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| 引用本文： | 王欢,杜艳芳,林美玉,张凯,陆嘉星.电化学还原和羧化肉桂酸乙酯的研究[J].中国化学,2008,26(9):1745-1748. |
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| 作者姓名： | 王欢 杜艳芳 林美玉 张凯 陆嘉星 |
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| 作者单位： | 上海市绿色化学与化学工程绿色化重点实验室,华东师范大学化学系，上海200062 |
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| 摘 要： | 在一室型电解池中,以MeCN为溶剂,Mg为牺牲阳极,成功地实现了肉桂酸乙酯的电化学还原和羧化。直接电还原生成相应的氢化二聚物和饱和酯。而在CO2氛围下,可以实现相应的电羧化反应,反应的总产率和选择性受各个反应条件的影响,例如电极材料、电解电位、底物浓度和反应温度。在最佳条件（阴极为Ni,电位为-1.7 V,底物浓度为0.1 mol·L-1,温度为-10 ℃）下可以得到78 ％的羧酸化产率。
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| 关 键 词： | 二氧化碳 电羧化 肉桂酸乙酯 电还原 |
| 收稿时间： | 2007-9-28 |
| 修稿时间： | 2008-3-5 |
Electrochemical Reduction and Carboxylation of Ethyl Cinnamate in MeCN |
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| Huan WANG,Yan‐Fang DU,Mei‐Yu LIN,Kai ZHANG,Jia‐Xing LU.Electrochemical Reduction and Carboxylation of Ethyl Cinnamate in MeCN[J].Chinese Journal of Chemistry,2008,26(9):1745-1748. |
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| Authors: | Huan WANG Yan‐Fang DU Mei‐Yu LIN Kai ZHANG Jia‐Xing LU |
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| Institution: | 1. Shanghai Key Laboratory of Green Chemistry and Chemical Processes, Department of Chemistry, East China Normal University, Shanghai 200062, China;2. Tel.: 0086‐021‐62233491;3. Fax: 0086‐021‐62232414 |
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| Abstract: | The electrochemical reduction and carboxylation of ethyl cinnamate have been carried out in an undivided cell equipped with a Mg sacrificial anode using MeCN as solvent. Direct electroreduction led to the formation of the hydrodimers and saturated ester. And electrocarboxylation was carried out in the presence of CO2. The global yield and the ratio of mono‐ to dicarboxylic acids were strongly affected by various factors: electrode material, electrolysis potential, the substrate concentration and temperature. The high yield (78%) was obtained under an optimized reaction condition (cathode: Ni; electrolysis potential: ?1.7 V; substrate concentration: 0.1 mol·L?1; and temperature: ?10 °C). |
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| Keywords: | carbon dioxide electrocarboxylation ethyl cinnamate electroreduction |
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