庚醛与环戊酮醇缩合反应的多相催化剂

IF 2.1 4区化学 Q3 CHEMISTRY, PHYSICAL

Progress in Reaction Kinetics and Mechanism Pub Date : 2020-05-01 DOI:10.1177/1468678319825713

Eva Vrbková, T. Kovářová, Eliška Vyskočilová, L. Červený

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引用次数: 6

摘要

在庚醛与环戊酮醛缩合反应中，测试了大量的非均相催化剂。这种醛缩反应有许多可能的产物，其中最理想的是2-庚基环戊酮。作为非均相催化剂，测试了以下催化剂:铯改性沸石，功能化MCM-41，单(MgO, CaO, ZnO)和双(Mo-Si, Mg-Al, Zn-Al)金属氧化物。改性沸石和功能化沸石在醛醇缩合反应中的活性较低，而单金属氧化物和双金属氧化物具有较高的活性。以氧化镁为催化剂，对2-庚基环戊酮的选择性最高(52%)。

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Heterogeneous catalysts in the aldol condensation of heptanal with cyclopentanone

A large number of heterogeneous catalysts were tested in the aldol condensation of heptanal with cyclopentanone. There are many possible products from this aldol condensation, among which the most desired is 2-heptylidenecyclopentanone. As heterogeneous catalysts, the following were tested: caesium modified zeolites, functionalized MCM-41, and single (MgO, CaO, ZnO) and double (Mo–Si, Mg–Al, Zn–Al) metal oxides. The activity of modified zeolites and functionalized zeolites in this aldol condensation was low, whereas single and double metal oxides possessed high activity. The highest selectivity to the desired 2-heptylidenecyclopentanone (52%) was obtained using magnesium oxide as catalyst.

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来源期刊

Progress in Reaction Kinetics and Mechanism 化学-物理化学

CiteScore

2.10

自引率

0.00%

发文量

审稿时长

2.3 months

期刊介绍： The journal covers the fields of kinetics and mechanisms of chemical processes in the gas phase and solution of both simple and complex systems.