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CuCl heterogenized on metformine-modified multi walled carbon nanotubes as recyclable nanocatalyst for Ullmann-type C-O and C-N coupling reactions

Abstract

Herein the novel MWCNTs-Met/CuCl nanocatalyst synthesis by metformine covalent grafting on surface of carbon nanotubes and subsequent coordination with CuCl catalyst is described. The nanocatalyst formation was analyzed by FTIR, energy dispersive spectroscopy (EDS), Raman spectroscopy, CHN and ICP analysis. The nanocatalyst morphology was explained by transmission and scanning electron microscopes (TEM and SEM). Moreover, in the N-arylation of anilines and indole, the nanocatalyst (MWCNTs-Met/CuCl2) could be successfully used through formation of intermolecular C(aryl)-N bond from the relevant aryl halides (Ar–I, Ar–Br, Ar–Cl) with amines by coupling reactions of Ullmann-type. The O-Arylation of substituted phenols is also promoted by this heterogeneous copper catalyst with different aryl iodides and bromides. Additionally, without any considerable loss in activity, the novel catalyst was recovered and recycled several times.

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Publication details

The article was received on 28 Aug 2017, accepted on 06 Jan 2018 and first published on 10 Jan 2018


Article type: Paper
DOI: 10.1039/C7NJ03240D
Citation: New J. Chem., 2018, Accepted Manuscript
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    CuCl heterogenized on metformine-modified multi walled carbon nanotubes as recyclable nanocatalyst for Ullmann-type C-O and C-N coupling reactions

    M. Akhavan, S. Hemmati, M. Hekmati and H. Veisi, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C7NJ03240D

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