What question did this study set out to answer?

The research aims to explore how Ti(III) can effectively cleave β-O-4 linkages in lignin to produce aromatic monomers.

January 25, 2026Organic Letters0 citations

Sustainable Lignin Valorization: Ti(III)-Mediated Reductive Degradation Yielding Aromatic Monomers (Phenol and Styrene)

YYYan-Xiu YaoScience and Technology on Surface Physics and Chemistry Laboratory QLQiu-rong LvScience and Technology on Surface Physics and Chemistry Laboratory XWX. Christine WangWuhan University of Technology

Key Points

The research aims to explore how Ti(III) can effectively cleave β-O-4 linkages in lignin to produce aromatic monomers.
Utilized Ti(III) to mediate cleavage of lignin linkages.
Examined the effectiveness with 28 distinct lignin model compounds.
Conducted mechanistic studies to understand the reaction pathway.
Achieved highly selective degradation under mild conditions.
Produced aromatic phenols and styrenes as end products.
Mechanistic insights revealed a radical pathway for lignin cleavage.

Abstract

A Ti(III)-mediated cleavage of β-O-4 linkages in lignin to yield aromatic phenols and styrenes is reported. Under mild reaction conditions, this method achieves efficient and highly selective degradation of 28 structurally distinct lignin model compounds. Mechanistic studies indicate that the titanium-mediated cleavage proceeds via a radical pathway, rather than involving carbocation intermediates, offering a promising route for sustainable conversion of lignin into useful aromatic monomers.

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