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RESEARCH PRODUCT
Comprehensive valorisation of technically relevant organosolv lignins via anodic oxidation
Siegfried R. WaldvogelMichael ZirbesManuel Breinersubject
chemistry.chemical_compoundchemistryVanillinYield (chemistry)OrganosolvEnvironmental ChemistryOrganic chemistryLigninGuaiacolValorisationRaw materialPollutionSyringaldehydedescription
Lignin represents the largest renewable feedstock of aromatic moieties in nature. However, its valorisation towards organic chemicals poses a challenging task. We herein report the selective electrochemical depolymerisation of several technically relevant organosolv lignins to aromatic fine chemicals with a simple two-electrode arrangement using caustic soda as electrolyte. Vanillin, syringaldehyde, the corresponding ketones and guaiacol were obtained with a combined maximum of 7.8 wt% isolated yield. Deeper insight in the process was provided by FT-IR, HSQC NMR and 31P NMR analyses of the lignins.
year | journal | country | edition | language |
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2021-01-01 | Green Chemistry |