Lignin peroxidase-catalyzed oxidation of nonphenolic trimeric lignin model compounds: fragmentation reactions in the intermediate radical cations

…, C Fabbri, O Lanzalunga

Index: Baciocchi, Enrico; Fabbri, Claudia; Lanzalunga, Osvaldo Journal of Organic Chemistry, 2003 , vol. 68, # 23 p. 9061 - 9069

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Citation Number: 37

Abstract

The H2O2-promoted oxidations of the two nonphenolic β-O-aryl lignin model trimers 1 and 2, catalyzed by lignin peroxidase (LiP) at pH= 3.5, have been studied. The results have been compared with those obtained in the oxidation of 1 and 2 with the genuine one-electron oxidant potassium 12-tungstocobalt (III) ate. These models present a different substitution pattern of the three aromatic rings, and by one-electron oxidation, they form radical cations ...