Aromatic Monomers by in Situ Conversion of Reactive Intermediates in the Acid-Catalyzed Depolymerization of Lignin
University of Groningen · University of St Andrews · +1 more institution
Abstract
Conversion of lignin into well-defined aromatic chemicals is a highly attractive goal but is often hampered by recondensation of the formed fragments, especially in acidolysis. Here, we describe new strategies that markedly suppress such undesired pathways to result in diverse aromatic compounds previously not systematically targeted from lignin. Model studies established that a catalytic amount of triflic acid is very effective in cleaving the β-O-4 linkage, most abundant in lignin. An aldehyde product was identified as the main cause of side reactions under cleavage conditions. Capturing this unstable compound by reaction with diols and by in situ catalytic hydrogenation or decarbonylation lead to three…
Citation impact
- FWCI
- 30.54
- Percentile
- 100%
- References
- 73
Authors
6Topics & keywords
- Chemistry
- Lignin
- Depolymerization
- Aldehyde
- Catalysis
- Organic chemistry
- Decarbonylation
- Triflic acid