Iron-catalysed oxidative cleavage of lignin and β-O-4 lignin model compounds with peroxides in DMSO†,10.1039/C5GC01306B

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Lactoyl-CoA 全氟丁基戊烷白叶藤碱全氟己基辛烷新白叶藤碱壳寡糖特色专题-生物多肽

Iron-catalysed oxidative cleavage of lignin and β-O-4 lignin model compounds with peroxides in DMSO†

Jakob Mottweiler,Torsten Rinesch,Claire Besson,Julien Buendia,Carsten Bolm

Green Chemistry Pub Date : 08/17/2015 00:00:00 , DOI:10.1039/C5GC01306B

Abstract

Simple FeCl₃-derived iron catalysts are used for the cleavage of β-O-4 linkages in lignin and lignin model compounds. The degradation of the β-O-4 linkages and the resinol structures in both organosolv and kraft lignin was proven by 2D-NMR (HSQC) experiments, and the oxidative depolymerisation of these lignin sources was confirmed by GPC. Key reactive species facilitating this cleavage are methyl radicals generated from H₂O₂ and DMSO.