Selective laccase-catalyzed dimerization of phenolic compounds derived from lignin: Towards original symmetrical bio-based (bis) aromatic monomers
GRAU, Etienne
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
CARLOTTI, Stéphane
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
See more >
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
GRAU, Etienne
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
CARLOTTI, Stéphane
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 1 LCPO : Polymerization Catalyses & Engineering
GRELIER, Stéphane
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
CRAMAIL, Henri
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
< Reduce
Laboratoire de Chimie des Polymères Organiques [LCPO]
Team 2 LCPO : Biopolymers & Bio-sourced Polymers
Language
en
Article de revue
This item was published in
Journal of Molecular Catalysis B: Enzymatic. 2016, vol. 125, p. 34-41
Elsevier
English Abstract
A laccase-catalyzed process was developed to prepare, selectively, in high yield, dimers of lignin based phenolic compounds without any purification. The influence of experimental parameters such as laccase loading, nature ...Read more >
A laccase-catalyzed process was developed to prepare, selectively, in high yield, dimers of lignin based phenolic compounds without any purification. The influence of experimental parameters such as laccase loading, nature of solvent and the presence of oxygen on the conversion of vanillin was investigated. After the dimerization, the product obtained as a precipitate is filtered off and the solution containing the enzyme can be re-used several times, which improves the process economics. A phenolic-substrate screening reveals that such process enables to dimerize regioselectively, six orthomethoxy-para-substituted phenols (vanillin, 4-hydroxy-3-methoxybenzonitrile, acetovanillon, methyl vanillate, 2-methoxy-4-methylphenol, and eugenol) with yields ranging from 87% to 96% and one orthodisubstituted phenol (2,6-dimethoxyphenol) with 80% yield.Read less <
English Keywords
FERULIC ACID
CHEMICALS
2
6-DIMETHOXYPHENOL
LIGNOCELLULOSIC BIOMASS
MEDIATED OXIDATION
OXIDATIVE POLYMERIZATION
Enzymatic catalysis
Dimerization
Lignin
Laccase
DERIVATIVES
GREEN
VANILLIN
DEPOLYMERIZATION
Origin
Hal imported