The Reactions of Hydroxyl Radicals with Aromatic Rings in Lignins, Studied with Creosol and 4-Methylveratrol
1992; De Gruyter; Volume: 46; Issue: 6 Linguagem: Inglês
10.1515/hfsg.1992.46.6.495
ISSN1437-434X
AutoresJosef Gierer, Torbjörn Reitberger,
Tópico(s)Radical Photochemical Reactions
ResumoCreosol and its methyl ether (4-methylveratrol), two simple model compounds representing phenolic and non-phenolic nuclei in lignins, were reacted in aqueous solution at ambiant temperature and pressure with hydroxyl radicals generated by γ-radiolysis. The reactions were conducted at different pH levels (2-12) and in the presence and absence of oxygen. After fractionation of the reaction mixtures, more than 40 products from each model compound were identified by HPLC-UV, GC-MS and/or NMR analyses.
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