mpg-C3N4 as a solid base catalyst for Knoevenagel condensations and transesterification reactions

Fangzheng Su; Markus Antonietti; Xinchen Wang

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mpg-C3N4 as a solid base catalyst for Knoevenagel condensations and transesterification reactions

机译：MPG-C3N4作为knoevenagel凝结和移剂反应的固体碱催化剂

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Deprotonated mesoporous graphitic carbon nitride (mpg-C3N4) was achieved by a simple method of treatment of as-prepared materials with different basic aqueous solutions (K2CO3, KOH, tBuOK). The resultant polymeric materials show significantly enhanced basicity, while maintaining the original mesoporous structure. It was then used as a heterogeneous base catalyst for Knoevenagel condensations and transesterification reactions. Catalytic results show that the deprotonated mpg-C3N4 exhibits high efficiency for promoting these reactions as a solid and polymeric catalyst. The reactions between various aldehydes and malonic derivatives, alcohols and P-ketoesters could proceed smoothly in the presence of deprotonated mpg-C3N4. The catalyst could be recycled and reused for several runs without any loss of intrinsic catalytic activity.

机译：质子化的介孔石墨氮化物（MPG-C3N4）是通过使用不同碱性水溶液（K2CO3，KOH，TBUOK）处理的简单处理材料的简单方法来实现的。所得的聚合物材料在保持原始介孔结构的同时显示出显着增强的碱性。然后将其用作knoevenagel凝结和移固酯反应的异质碱催化剂。催化结果表明，去质子化的MPG-C3N4表现出很高的效率，可以促进这些反应作为固体和聚合物催化剂。在存在去质子化的MPG-C3N4的情况下，各种醛与恶性衍生物，醇和P-ketoesters之间的反应可以顺利进行。可以将催化剂回收并重复用于多次运行，而不会丢失固有的催化活性。

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来源
《Catalysis science & technology》 |2012年第5期|1005-1009|共5页
作者
Fangzheng Su; Markus Antonietti; Xinchen Wang;
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作者单位

Department of Colloid Chemistry, Max Planck Institute of Colloidsand Interfaces, Research Campus Golm, D-14476 Golm, Potsdam,Germany;

Research Institute of Photocatalysis, State Key Laboratory BreedingBase of Photocatalysis, Fuzhou University, Fuzhou 350002,P. R. China;

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正文语种英语
中图分类汉语教学;
关键词
Knoevenagel condensation; condensation; SolidCatalystsREACTIONnickeliferous orestransesterificationCatalyst activity;

机译：knoevenagel凝结;凝结;固体催化作用nickelifernickelifor otersesteresterycatalyst活性;

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mpg-C3N4 as a solid base catalyst for Knoevenagel condensations and transesterification reactions

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