Formation and reaction of O=MnV species in the oxidation of phenolic substrates with H2O2 catalysed by the dinuclear manganese(IV) 1,4,7-trimethyl-1,4,7-triazacyclononane complex [MnIV2(mu-O)3(TMTACN)2](PF6)2

Bruce C Gilbert; John R Lindsay Smith; Antoni Mairata i Payeras; John Oakes

doi:10.1039/b315427k

Formation and reaction of O=MnV species in the oxidation of phenolic substrates with H2O2 catalysed by the dinuclear manganese(IV) 1,4,7-trimethyl-1,4,7-triazacyclononane complex [MnIV2(mu-O)3(TMTACN)2](PF6)2

Org Biomol Chem. 2004 Apr 21;2(8):1176-80. doi: 10.1039/b315427k. Epub 2004 Mar 18.

Authors

Bruce C Gilbert¹, John R Lindsay Smith, Antoni Mairata i Payeras, John Oakes

Affiliation

¹ University of York, Department of Chemistry, Heslington, UK YO10 5DD.

PMID: 15064795
DOI: 10.1039/b315427k

Abstract

The oxidation of phenolic substrates with H2O2 catalysed by [MnIV2(mu-O)3(TMTACN)2](PF6)2 1, (TMTACN, 1,4,7-trimethyl-1,4,7-triazacyclononane) has been investigated by use of ESI mass spectrometry. The role of the phenols as one-electron reductants and as co-ligands in the stabilisation and reaction of an intermediate O=MnV species has been analysed and the presence of a variety of manganese species in solution has been explained. Our results lead to a proposed mechanism for the catalytic oxidation of phenols in this system.