期刊
CATALYSIS COMMUNICATIONS
卷 53, 期 -, 页码 47-52出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.catcom.2014.04.025
关键词
Suzuki coupling reaction; Palladium; Magnetic; Mesoporous; Recycling
资金
- NSFC [21301082]
In this study, a novel Pd(II) complex functionalized core-shell magnetic mesoporous catalyst (Fe3O4@SiO2@mSiO(2)-Pd(II)) was synthesized by a simple cost effective procedure. It was characterized by transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, vibrating sample magnetometer, and nitrogen physical adsorption. The Fe3O4@SiO2 mSiO(2)-Pd(II) catalyst offered high surface area and exhibited excellent activity towards Suzuki-Miyaura cross-coupling reaction of halides with aryl boronic acids in ethanol in air. The Fe3O4@SiO2@mSiO(2)-Pd(II) catalyst was stable, reusable, and conveniently recovered by applying an external magnetic field. Moreover, it provided 91% conversion after the sixth catalytic run. The Fe3O4@SiO2@mSiO(2)-Pd(II) catalyst examined in this study combined both the efficiency of a homogeneous catalyst and the durability of a heterogeneous catalyst The results revealed that the Fe3O4@SiO2@mSiO(2)-Pd(II) catalyst is promising as a candidate for various Pd-based catalytic applications. (C) 2014 Elsevier B.V. All rights reserved.
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