| 脯氨酸离子液体催化Knoevenagel缩合反应(英文) |
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| 引用本文： | 宋红兵,于英豪,陈学伟,李雪辉,奚红霞.脯氨酸离子液体催化Knoevenagel缩合反应(英文)[J].催化学报,2012,33(4):666-669. |
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| 作者姓名： | 宋红兵 于英豪 陈学伟 李雪辉 奚红霞 |
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| 作者单位： | 华南理工大学化学与化工学院制浆造纸工程国家重点实验室,广东广州,510640 |
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| 基金项目： | supported by the National Natural Science Foundation of China(20876055 and 20906029);the Natural Science Foundation of Guangdong Province(S2011020001472);the Fundamental Research Funds for the Central Universities~~ |
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| 摘 要： | 改进了1-丁基-3-甲基咪唑L-脯氨酸(bmim]Pro])功能化离子液体的合成路线,并将该离子液体用于催化含活泼亚甲基化合物与醛或酮的Knoevenagel缩合反应.在水介质中,室温下,该离子液体可快速催化上述Knoevenagel缩合反应,并选择性生成α,β-不饱和羰基化合物且分离收率可达到88%～97%.该脯氨酸离子液体循环重复使用6次后,催化活性没有明显的下降.此外,初步探讨了其催化过程机理.
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| 关 键 词： | 脯氨酸 离子液体 催化 Knoevenagel缩合 |
2-Pyrrolidinecarboxylic Acid Ionic Liquid Catalyzed Knoevenagel Condensation |
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| SONG Hongbing
,
YU Yinghao
,
CHEN Xuewei
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LI Xuehui
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XI Hongxia.2-Pyrrolidinecarboxylic Acid Ionic Liquid Catalyzed Knoevenagel Condensation[J].Chinese Journal of Catalysis,2012,33(4):666-669. |
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| Authors: | SONG Hongbing YU Yinghao CHEN Xuewei LI Xuehui XI Hongxia |
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| Institution: | School of Chemistry and Chemical Engineering,Pulp and Paper Engineering State Key Laboratory of China,South China University of Technology,Guangzhou 510640,Guangdong,China |
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| Abstract: | The pyrrolidinecarboxylic functionalized ionic liquid,1-butyl-3-methylimidazolium-(S)-2-pyrrolidinecarboxylic acid salt(bmim]Pro]),was prepared using an improved procedure.α,β-Unsaturated carbonyl compounds were selectively synthesized and high yields(88%-97%) were obtained at room temperature in aqueous media when bmim]Pro] was used as the catalyst for the Knoevenagel reaction between a methylene compound and an aldehyde or ketone.bmim]Pro] was reused six times without loss of catalytic activity.The catalytic mechanism is briefly discussed. |
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| Keywords: | proline ionic liquid catalysis Knoevenagel condensation |
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