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Mimicking the function of amine oxidases and phenoxazinone synthase by a manganese(IV)-monoradical complex by Chandan Mukherjee; Thomas Weyhermüller; Eberhard Bothe; Phalguni Chaudhuri is a Chemistry article available to read on EtoBox.

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A tridentate redox-active ligand, based on 2-aminophenol, yields a manganese(IV) complex with an iminobenzosemiquinone radical, 1. The crystal structure of 1 was determined by X-ray diffraction and the electronic structure was established by various physical methods, including EPR and variable-temperature (2e290 K) susceptibility measurements. The Mn(IV)-radical complex 1 catalyses the oxidation of primary amines with aerial oxygen as the sole oxidant to afford aldehydes under mild conditions to mimic the function of the copper-containing enzyme amine oxidases (CAO). Moreover, 1 is an efficient catalyst for the generation of phenoxazinone chromophore, thus models the catalytic function of the copper-containing enzyme phenoxazinone synthase (PHS). An 'oneoff' mechanism of the radicals together with redox participation of the metal center is proposed for the catalytic oxidation processes.

Who reads Mimicking the function of amine oxidases and phenoxazinone synthase by a manganese(IV)-monoradical complex?

Author

Chandan Mukherjee; Thomas Weyhermüller; Eberhard Bothe; Phalguni Chaudhuri

Publisher

Elsevier Science; Elsevier ; Elsevier Masson; Elsevier BV; Cellule MathDoc/CEDRAM (ISSN 1631-0748)

Published

2007

Language

EN

Field

Chemistry (Physical Sciences)