Methyltrioxorhenium: a new catalyst for the activation of hydrogen peroxide to the oxidation of lignin and lignin model compounds

Methyltrioxorhenium was found a powerful and promising catalyst for the oxidation of lignins and lignin model compounds by use of hydrogen peroxide as primary oxidant. The oxidative degradation of lignin under totally chlorine free conditions is one of the most relevant targets for the design of env...

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Bibliographic Details
Published in:Bioorganic & medicinal chemistry 2005-04, Vol.13 (7), p.2569-2578
Main Authors: Crestini, Claudia, Pro, Paola, Neri, Veronica, Saladino, Raffaele
Format: Article
Language:English
Subjects:
Applied sciences
Catalysis
Catalytic reactions
Chemistry
Exact sciences and technology
General and physical chemistry
Hydrogen Peroxide - chemistry
Lignin - chemical synthesis
Lignin - chemistry
Molecular Structure
Organometallic Compounds - chemistry
Oxidation-Reduction
Paper, paperboard, non wovens
Polymer industry, paints, wood
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Wood. Paper. Non wovens
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Summary:Methyltrioxorhenium was found a powerful and promising catalyst for the oxidation of lignins and lignin model compounds by use of hydrogen peroxide as primary oxidant. The oxidative degradation of lignin under totally chlorine free conditions is one of the most relevant targets for the design of environmental friendly pulping and bleaching industrial processes. Methyltrioxorhenium was found a powerful and promising catalyst for the oxidation of both phenolic and non-phenolic lignin model compounds by use of hydrogen peroxide as primary oxidant. Three different technical lignins, hydrolytic sugar cane lignin (SCL), red spruce kraft lignin (RSL) and a hardwood organosolvent lignin (OSL), that are representative examples of widely diffused para-hydroxyphenyl–guaiacyl, guaiacyl and guaiacyl–syringyl lignins, were also extensively degraded under similar experimental conditions.
ISSN:0968-0896
1464-3391
DOI:10.1016/j.bmc.2005.01.049