在 MCM-41 上接枝 Mn (II) 的新非对称萨拉莫络合物并将其用作在 H2O2 作为氧化剂存在下进行烯烃环氧化反应的异相催化剂

IF 2.2 4区化学 Q2 Engineering Chemical Papers Pub Date : 2024-09-25 DOI:10.1007/s11696-024-03631-y

Majid Kandi, Goldasteh Zarei, Farrokh Roya Nikmaram, Jamshid Najafpour

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引用次数: 0

摘要

通过多重接枝法合成了不对称肟的 "萨拉莫 "锰配体的新锰 (II) 复合物，并将其固定在 MCM-41 上。固定化的非对称萨拉莫锰络合物（MCM-41-萨拉莫锰）被用作催化剂，与 H2O2 一起进行烯烃的环氧化反应。研究了可能影响转化率的各种反应参数的影响，如反应时间、温度、催化剂用量、氧化剂和咪唑。所制备的锰催化剂具有极佳的重复使用性，可重复使用至少五次而不会出现明显的沥滤或活性损失。

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Grafting of the new unsymmetrical salamo complex of Mn (II) on MCM-41 and its use as a heterogeneous catalyst for the epoxidation of alkenes in the presence of H2O2 as an oxidant

The new Mn (II) complex of the “salamo” salen ligand of unsymmetrical oxime was synthesized and immobilized on MCM-41 by the multi-grafting method. The immobilized unsymmetrical salamo complex of manganese (MCM-41-Mn salamo) was used as a catalyst in the epoxidation of the alkenes with H₂O₂. The effect of various reaction parameters which may affect the conversion such as reaction time, temperature, amount of catalyst, oxidant and imidazole was investigated. The prepared Mn catalyst exhibited excellent reusability and could be reused at least five times without significant leaching or loss of activity.

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来源期刊

Chemical Papers Chemical Engineering-General Chemical Engineering

CiteScore

3.30

自引率

4.50%

发文量

590

期刊介绍： Chemical Papers is a peer-reviewed, international journal devoted to basic and applied chemical research. It has a broad scope covering the chemical sciences, but favors interdisciplinary research and studies that bring chemistry together with other disciplines.