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Issue 6, 2010
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Tetranuclear copper(II)–Schiff-base complexes as active catalysts for oxidation of cyclohexane and toluene

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Abstract

Three new Cu(II) complexes, [Cu4(O)(Ln)2(CH3COO)4] where HL1 = 4-methyl-2,6-bis(2-fluoroethyliminomethyl) phenol for complex 1, HL2 = 4-methyl-2,6-bis(2-chloroethyliminomethyl) phenol for complex 2·0.25CH3CN and HL3 = 4-methyl-2,6-bis(2-bromoethyliminomethyl) phenol for complex 3 have been synthesized and characterized by elemental analysis, FTIR, UV-vis spectroscopy, and electrospray ionization mass spectroscopy. The structure of complex 2·0.25CH3CN has also been confirmed by single crystal X-ray diffraction analysis. These complexes have been found to be active catalysts for the oxidation of cyclohexane and toluene in the presence of hydrogen peroxide as the oxidant under mild conditions. Cyclohexane is oxidized to yield cyclohexanol and cyclohexanone, whereas toluene is oxidized to benzyl alcohol and benzaldehyde.

Graphical abstract: Tetranuclear copper(ii)–Schiff-base complexes as active catalysts for oxidation of cyclohexane and toluene

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Publication details

The article was received on 13 Jul 2009, accepted on 12 Nov 2009 and first published on 15 Dec 2009


Article type: Paper
DOI: 10.1039/B914017D
Citation: Dalton Trans., 2010,39, 1539-1545
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    Tetranuclear copper(II)–Schiff-base complexes as active catalysts for oxidation of cyclohexane and toluene

    P. Roy and M. Manassero, Dalton Trans., 2010, 39, 1539
    DOI: 10.1039/B914017D

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