Issue 17, 2021

Comprehensive valorisation of technically relevant organosolv lignins via anodic oxidation

Abstract

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.

Graphical abstract: Comprehensive valorisation of technically relevant organosolv lignins via anodic oxidation

Supplementary files

Article information

Article type
Paper
Submitted
06 Jun 2021
Accepted
24 Jul 2021
First published
28 Jul 2021

Green Chem., 2021,23, 6449-6455

Comprehensive valorisation of technically relevant organosolv lignins via anodic oxidation

M. Breiner, M. Zirbes and S. R. Waldvogel, Green Chem., 2021, 23, 6449 DOI: 10.1039/D1GC01995C

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements