核壳结构磁性MCM-41型中孔二氧化硅负载Cu/Fe：一种用于Ullmann型均偶联反应的新型可回收纳米催化剂

IF 1.8 3区化学 Q3 CHEMISTRY, INORGANIC & NUCLEAR

Main Group Metal Chemistry Pub Date : 2022-01-01 DOI:10.1515/mgmc-2022-0018

M. Abdollahi-Alibeik, Zahra Ramazani

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引用次数: 0

摘要

摘要在本研究中，一种新型磁性MCM-41型介孔二氧化硅负载Fe/Cu(Fe3O4@Fe–Cu/MCM-41）的制备、表征并用作通过Ullmann交叉偶联反应合成对称二芳基的多相催化剂。使用傅里叶变换红外光谱、能量色散X射线光谱、X射线衍射和氮吸附-解吸等温线对该纳米复合材料进行了表征。这个Fe3O4@Fe–在最佳条件下，Cu/MCM-41作为一种有效的催化剂应用于双芳基化合物的合成。该纳米催化剂被回收并重复使用数次，而没有显著的活性损失。图形摘要

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Core–shell structured magnetic MCM-41-type mesoporous silica-supported Cu/Fe: A novel recyclable nanocatalyst for Ullmann-type homocoupling reactions

Abstract In this study, a novel magnetic MCM-41-type mesoporous silica-supported Fe/Cu (Fe3O4@Fe–Cu/MCM-41) was prepared, characterized, and used as a heterogeneous catalyst for the synthesis of symmetric biaryls by Ullmann cross-coupling reaction. This nanocomposite was characterized using Fourier transform infrared spectroscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, and nitrogen adsorption–desorption isotherm. The Fe3O4@Fe–Cu/MCM-41 was applied as an efficient catalyst in the synthesis of biaryls under optimum conditions. This nanocatalyst was recovered and reused several times without significant loss of activity. Graphical abstract

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来源期刊

Main Group Metal Chemistry CHEMISTRY, INORGANIC & NUCLEAR-CHEMISTRY, ORGANIC

CiteScore

4.10

自引率

27.80%

发文量

审稿时长

4 weeks

期刊介绍： This journal is committed to the publication of short communications, original research, and review articles within the field of main group metal and semi-metal chemistry, Main Group Metal Chemistry is an open-access, peer-reviewed journal that publishes in ongoing way. Papers addressing the theoretical, spectroscopic, mechanistic and synthetic aspects of inorganic, coordination and organometallic main group metal and semi-metal compounds, including zinc, cadmium and mercury are welcome. The journal also publishes studies relating to environmental aspects of these metals, their toxicology, release pathways and fate. Articles on the applications of main group metal chemistry, including in the fields of polymer chemistry, agriculture, electronics and catalysis, are also accepted.