Quaternary ammonium functionalized Fe3O4 & P(GMA-AA-DVB) magnetic Janus particles as highly efficient catalysts for phase transfer reactions

Xiangkun Jia; Yong Ma; Yin Liu; Baoliang Zhang; Hepeng Zhang; Qiuyu Zhang

doi:10.1039/C8DT02433B

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Quaternary ammonium functionalized Fe₃O₄ & P(GMA-AA-DVB) magnetic Janus particles as highly efficient catalysts for phase transfer reactions†

Xiangkun Jia,^a Yong Ma,^a Yin Liu,^a Baoliang Zhang,

^a Hepeng Zhang^a and Qiuyu Zhang

*^a

Author affiliations

* Corresponding authors

^a MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Natural and Applied Science, Northwestern Polytechnical University, Xi'an 710072, P. R. China
E-mail: qyzhang@nwpu.edu.cn

Abstract

This work describes the preparation and catalytic performance of magnetic Janus quaternary ammonium phase transfer catalysts Fe₃O₄ & P(GMA-AA-DVB)N⁺(CH₃)₃OH⁻ (MJPTCs). The morphologies, structures and other physical properties of the Janus catalysts prepared by a modified solvent thermal method were characterized by TEM, FTIR, TGA, VSM and XRD. The reaction of benzyl alcohol and benzyl bromide to generate dibenzyl ether was chosen as the model reaction to evaluate the catalytic activity of the MJPTCs. Besides, the influence of catalyst concentration and reaction temperature on catalytic efficiency was investigated in detail. The experimental results showed that the MJPTCs exhibited great catalytic activity with a conversion rate of 99% in only 2.5 h, and excellent reusability with a conversion rate of 97% after 8 cycles.

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Article information

DOI: https://doi.org/10.1039/C8DT02433B
Article type: Paper
Submitted: 13 Jun 2018
Accepted: 17 Aug 2018
First published: 20 Aug 2018

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Dalton Trans., 2018,47, 12893-12900

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Quaternary ammonium functionalized Fe₃O₄ & P(GMA-AA-DVB) magnetic Janus particles as highly efficient catalysts for phase transfer reactions

X. Jia, Y. Ma, Y. Liu, B. Zhang, H. Zhang and Q. Zhang, Dalton Trans., 2018, 47, 12893 DOI: 10.1039/C8DT02433B

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Dalton Transactions