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Magnetic field controlled C60-TEMPO catalyst for oxidation of alcohols


TEMPO functionalized C60 fullerene bearing phosphonic acid anchoring group was successfully synthesized and characterized using cyclic voltammetry and spectroscopic techniques: ESI-MS, NMR, ESR and FT-IR. Obtained fullerene derivative was grafted onto surface of oleic acid stabilized magnetic iron oxide nanoparticles using ligand exchange reaction. Resulting nanocomposite material was characterized by means of TEM, EDX, XPS, Mössbauer spectroscopy and TGA. Subsequently, the obtained catalyst was employed for selective oxidation of various primary and secondary alcohols to their corresponding aldehyde or ketone analogues and its activity was examined. Results showed high activity of described catalyst, reported procedure enables oxidation of selected alcohols with chemoselectivity and good yields at mild conditions. Moreover, magnetic properties of the presented catalyst allow easy control and removal of the catalyst using external magnetic field. High stability of the catalyst along with a simple removal method and no disposal problems, allowing multiple reuse without noticeable loss of efficiency demonstrates potential value of reported catalyst in application of primary and secondary alcohols oxidation.

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Article information

06 Nov 2019
02 Jan 2020
First published
03 Jan 2020

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

Magnetic field controlled C60-TEMPO catalyst for oxidation of alcohols

P. Piotrowski, J. Żukrowski and A. Kaim, New J. Chem., 2020, Accepted Manuscript , DOI: 10.1039/C9NJ05567C

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