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ARS Home » Midwest Area » Madison, Wisconsin » U.S. Dairy Forage Research Center » Research » Publications at this Location » Publication #66544
Title: NMR STUDIES ON A NEW METHOD FOR SELECTIVE DEGRADATION OF LIGNINS

Author
item LU, FACHUANG - UNIV OF WISCONSIN-MADISON
item Ralph, John

Submitted to: American Chemical Society Abstracts
Publication Type: Abstract Only
Publication Acceptance Date: 3/28/1996
Publication Date: N/A
Citation: N/A

Interpretive Summary:

Technical Abstract: The selectivity and cleanliness of reactions which form the basis of a proposed new alternative to the analytical thioacidolysis method have been examined by NMR using model compounds and isolated lignins. The results from the model study show that all steps involved in the new selective method are almost quantitative. When applied to isolated lignins, the NMR spectra show that the main substructures of lignin are selectively and cleanly converted to desired derivatives which are further degraded by specific ether cleavage reactions resulting in high yields of analyzable monomers. The beautiful selectivity and cleanliness demonstrated here, combined with its mildness, should make this method very attractive to lignin researchers.