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Copper nanoparticles supported on highly nitrogen‐rich containing covalent organic polymers as heterogeneous catalyst for ipso-hydroxylation of phenyl boronic acid to phenol

Abstract

This work describes a simple procedure for the synthesis of highly nitrogen‐rich containing covalent organic polymers using commercial available starting material like melamine and cyanuric chloride as a solid heterogeneous catalyst Cu/TCOP under solvothermal conditions. The structural properties of the as-synthesized solid heterogeneous catalyst were determined by X-ray diffraction (XRD), diffused reflectance spectroscopy, Fourier transformed infrared (FT-IR) spectroscopy, field emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy(EDS), 13C-CP MAS nuclear magnetic resonance spectroscopy and X-ray photo electron spectroscopy. The catalytic activity of Cu/TCOP was investigated by focusing on oxidation of phenylboronic acid under atmospheric conditions in aqueous medium to get very good yield up to 99%. The reaction performance have been evaluated considering the effect of various parameters such as amount of catalyst, reaction time, temperature, amount of base and solvent. The Cu/TCOP catalyst is completely recoverable in a facile manner from the reaction mixture and the efficiency of the copper nano catalyst was recovered for after five cycles.

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Supplementary files

Article information


Submitted
19 Nov 2019
Accepted
18 Mar 2020
First published
19 Mar 2020

New J. Chem., 2020, Accepted Manuscript
Article type
Paper

Copper nanoparticles supported on highly nitrogen‐rich containing covalent organic polymers as heterogeneous catalyst for ipso-hydroxylation of phenyl boronic acid to phenol

V. Sadhasivam, H. Muniyasamy, E. Ganesan, R. Balasaravanan, S. Murugesan and S. Ayyanar, New J. Chem., 2020, Accepted Manuscript , DOI: 10.1039/C9NJ05759E

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