61413-50-1Relevant academic research and scientific papers
Identification and quantification of lignin monomers and oligomers from reductive catalytic fractionation of pine wood with GC × GC – FID/MS
Dao Thi, Hang,Van Aelst, Korneel,Van den Bosch, Sander,Katahira, Rui,Beckham, Gregg T.,Sels, Bert F.,Van Geem, Kevin M.
supporting information, p. 191 - 206 (2022/01/19)
Thorough lignin characterization is vital to understand the physicochemical properties of lignin and to evaluate lignocellulose biorefinery processes. In this study, an in-depth characterization of lignin oil, obtained from reductive catalytic fractionati
Efficient cobalt-catalyzed oxidative conversion of lignin models to benzoquinones
Biannic, Berenger,Bozell, Joseph J.
, p. 2730 - 2733 (2013/07/26)
Phenolic lignin model monomers and dimers representing the primary substructural units of lignin were successfully oxidized to benzoquinones in high yield with molecular oxygen using new Co-Schiff base catalysts bearing a bulky heterocyclic nitrogen base as a substituent. This is the first example of a catalytic system able to convert both S and G lignin model phenols in high yield, a process necessary for effective use of lignin as a chemical feedstock.
Singlet oxygen in the photodegradation of lignin models
Crestini, Claudia,D'Auria, Maurizio
, p. 7877 - 7888 (2007/10/03)
The photochemical oxidation of lignin models in the presence of singlet oxygen was studied. The treatment of the non-phenolic β-O-4 aryl ether derivatives 6, 7, and 8 in the presence of both oxygen and Rose Bengal gave products deriving from a formal β-C-O cleavage formation. By this way. the derivatives 12, 13, and 15 were obtained. The photochemical oxidation of the phenolic β-O-4 aryl ether 9 gave the same type of product confirming that, in this case, the presence of the carbonyl group is not indispensable to have the cleavage reaction. The use of the model compound 10 showed that, when the phenoxy part of the molecule shows a lower reactivity towards singlet oxygen, the oxidation of the phenol moiety to hydroquinone call occur. The photochemical behaviour of these model compounds can be rationalised from a reaction of singlet oxygen with the phenoxy part of the molecule.
Synthesis of Lignin Model Compounds of the Arylglycerol β-Syringyl Ether Type
Unge, Sverker von,Lundquist, Knut,Stomberg, Rolf
, p. 469 - 474 (2007/10/02)
Lignin model compounds of the arylglycerol β-syringyl ether type have been prepared by the reaction of aromatic aldehydes with the α-lithiated carboxylate of (2,6-dimethoxyphenoxy)acetic acid and subsequent reduction of the 3-aryl-2-(2,6-dimethoxyphenoxy)-3-hydroxypropanoic acids formed.
