1-Butyl-3-methylimidazolium-Based Ionic Liquid in Biomass Fractionation-Green Solvent or Active Reagent Toward Lignin Compounds?

ABSTRACT: N,N'-Dialkylimidazolium-based ionic liquids are capable of completely dissolving lignocellulosic biomass at elevated temperatures and are considered as promising green solvents for future biorefining technologies. However, the obtained ionic liquid lignin preparations may contain up to several percent nitrogen. This indicates strong interactions between the biopolymer and the IL cation, the nature of which has not yet been clarified. The present study investigates mechanisms and pathways of the formation of nitrogen-containing lignin compounds. To achieve this goal, eight monomeric lignin-related phenols bearing different functional groups (ketone, aldehyde, hydroxyl, carbon-carbon double bonds) were treated with 1-butyl-3-methylimidazolium acetate (BmimOAc) under typical conditions of IL-

SUBMITTER: Belesov AV 

PROVIDER: S-EPMC11641608 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature