Selective modification of hydroxyl groups in lignin model compounds by ruthenium-catalyzed transfer hydrogenation

Veronika D. Badazhkova, Risto Savela, Reko Leino*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Selective ruthenium-catalyzed oxidation of lignin diol model compounds and lignin was accomplished by a transfer hydrogenation methodology. The developed procedure allows us to selectively oxidize benzylic secondary alcohols in model diols and spruce milled wood lignin in the presence of a commercially available Shvo catalyst under aerobic conditions. Six ketoalcohols were obtained in 70-92% yields from the model compounds, which also included lignin monomers containing 5-5′ and β-O-4 linkages. The developed method can be used as an intermediate step for the introduction of new functional groups into lignin-type structures and lignin to allow their further modifications.

Original languageEnglish
Pages (from-to)6587-6596
Number of pages10
JournalDalton Transactions
Volume51
Issue number17
DOIs
Publication statusPublished - 10 Mar 2022
MoE publication typeA1 Journal article-refereed

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