Aromatic ring cleavage of 4,6-di(tert-butyl)guaiacol, a phenolic lignin model compound, by laccase of Coriolus versicolor.

Kawai S, Umezawa T, Shimada M, Higuchi T.

Research Section of Lignin Chemistry, Wood Research Institute, Kyoto University, Japan.

Abstract

It was found that 2,4-di(tert-butyl)-4-(methoxycarbonylmethyl)-2-buten-4-ol ide (II) was formed as an aromatic ring cleavage product of a phenolic lignin model compound, 4,6-di(tert-butyl)guaiacol (I), by laccase of Coriolus versicolor. Based on isotopic experiments with 18O2 and H2 18O, the mechanism of formation of II from I is discussed.

PMID: 3410044 [PubMed – indexed for MEDLINE]

http://www.ncbi.nlm.nih.gov/pubmed/3410044