Journal
CHEMSUSCHEM
Volume 13, Issue 17, Pages 4487-4494Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.202000753
Keywords
biorefinery; catalysis; diaryl ether; lignin; mechanism
Funding
- Swiss National Science Foundation (Synergia) [CRS115_180258]
- DOE Great Lakes Bioenergy Research Center (DOE BER Office of Science) [DE-SC0018409]
Ask authors/readers for more resources
Hydrogenolysis has emerged as one of the most effective means of converting polymeric lignin into monoaromatic fragments of value. Reported yields may be higher than for other methods and can exceed the theoretical yields estimated from measures of the content of lignin's most readily cleaved alkyl-aryl ether bonds in beta-ether units. The high yields suggest that other units in lignin are being cleaved. Diaryl ether units are important units in lignin, and their cleavage has been examined previously using simple model compounds, such as diphenyl ether. Herein, the hydrogenolysis of model compounds that closely resemble the native lignin 4-O-5 diaryl ether units was analyzed. The results provided unexpected insights into the reactivity and partial cleavage of these compounds. The models and lignin polymer produced not only monomers, but also unusual 1,3,5-meta-substituted aromatics that appear to be diagnostic for the presence and the cleavage of the 4-O-5 diaryl ether unit in lignin.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available