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Origins of Catalyst Inhibition in the Manganese-Catalysed Oxidation of Lignin Model Compounds with H2O2

Barbieri, A., Kasper, J. B., Mecozzi, F., Lanzalunga, O. & Browne, W. R., 5-Jul-2019, In : Chemsuschem. 12, 13, p. 3126-3133 8 p.

Research output: Contribution to journalArticleAcademicpeer-review

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 beta-O-4 linkage with H2O2 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.

Original languageEnglish
Pages (from-to)3126-3133
Number of pages8
JournalChemsuschem
Volume12
Issue number13
Early online date19-Apr-2019
Publication statusPublished - 5-Jul-2019

    Keywords

  • catalysis, inhibition, lignin, manganese, oxidation, HYDROGEN-PEROXIDE, OXYGEN DELIGNIFICATION, BIOMIMETIC DEGRADATION, VERATRYL ALCOHOL, BOND-CLEAVAGE, COMPLEXES, PULP, MN(IV)-ME4DTNE, HYDROXYLATION, MECHANISMS

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