| PEG型酸性温控离子液体中芳香酸和醇的酯化反应 |
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| 引用本文： | 职慧珍,罗军,马伟,吕春绪.PEG型酸性温控离子液体中芳香酸和醇的酯化反应[J].高等学校化学学报,2008,29(4):772-774. |
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| 作者姓名： | 职慧珍 罗军 马伟 吕春绪 |
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| 作者单位： | 南京理工大学化工学院,南京,210094 |
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| 摘 要： | 报道了该催化体系在芳香酸和醇酯化反应中的应用. 研究发现, 该离子液体具有优良的催化性能, 产品易分离, 催化剂可循环使用且活性不降低, 催化剂不易流失, 实现了均相催化剂的高效回收和再利用.
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| 关 键 词： | 聚乙二醇(PEG) 酸性离子液体 温控 酯化 两相 |
| 文章编号： | 0251-0790(2008)04-0772-03 |
| 收稿时间： | 2007-10-22 |
| 修稿时间： | 2007年10月22 |
Esterification of Aromatic Acids and Alcohols in Acidic PEG Thermoregulated Ionic Liquid |
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| ZHI Hui-Zhen,LUO Jun,MA Wei,L Chun-Xu.Esterification of Aromatic Acids and Alcohols in Acidic PEG Thermoregulated Ionic Liquid[J].Chemical Research In Chinese Universities,2008,29(4):772-774. |
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| Authors: | ZHI Hui-Zhen LUO Jun MA Wei L Chun-Xu |
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| Institution: | ZHI Hui-Zhen,LUO Jun,MA Wei,L(U) Chun-Xu |
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| Abstract: | Two Acid sites PEG thermoregulated ionic liquid was prepared and used as the catalyst for the esterification of aromatic acid and alcohol. The yield of esterification catalyzed by ionic liquid was 99% in 1 h at 80 ℃ with 0.1%(molar fraction) acidic PEG ionic liquid. The catalyst system could be applied to a wide range of esterification of aromatic acids and alcohols. The ionic liquid has the advantages of both homogeneous and heterogeneous phase at different temperature with a high product yield and the ease of product as well as catalyst separation. The ionic liquid studied plays the role of catalyst and is recycled up to seven times without any significant loss of activity. Morover, by simple phase separation the ionic liquid phase could be re-utilized up to seven times without leaching. |
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| Keywords: | PEG Acidic ionic liquid Thermoregulation Esterification Two phase |
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