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Origins of Catalyst Inhibition in the Manganese-Catalysed Oxidation of Lignin Model Compounds with H₂ O₂.

ABSTRACT: The upgrading of complex bio-renewable feedstock, such as lignocellulose, through depolymerisation benefits from the selective reactions at key functional groups. Applying homogeneous catalysts developed for selective organic oxidative transformations to complex feedstock such as lignin is challenged by the presence of interfering components. The selection of appropriate model compounds is essential in applying new catalytic systems and identifying such interferences. Here, it was shown by using as an example the oxidation of a model substrate containing a ?-O-4 linkage with H₂ O₂ and an in?situ-prepared manganese-based catalyst, capable of efficient oxidation of benzylic alcohols, that interference from compounds liberated during the reaction can prevent its application to lignocellulose depolymerisation.

SUBMITTER: Barbieri A

PROVIDER: S-EPMC6617720 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature

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Origins of Catalyst Inhibition in the Manganese-Catalysed Oxidation of Lignin Model Compounds with H2 O2.

Barbieri Alessia A Kasper Johann B JB Mecozzi Francesco F Lanzalunga Osvaldo O Browne Wesley R WR

ChemSusChem 20190521 13

The upgrading of complex bio-renewable feedstock, such as lignocellulose, through depolymerisation benefits from the selective reactions at key functional groups. Applying homogeneous catalysts developed for selective organic oxidative transformations to complex feedstock such as lignin is challenged by the presence of interfering components. The selection of appropriate model compounds is essential in applying new catalytic systems and identifying such interferences. Here, it was shown by using ...[more]

PMID: 31001914

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