Synthesis, antibiotic structure-activity relationships, and cellulose dissolution studies of new room-temperature ionic liquids derived from lignin.

ABSTRACT:

Background

Ionic liquids (ILs) are promising pretreatment solvents for lignocellulosic biomass, but are largely prepared from petroleum precursors. Benzaldehydes from depolymerized lignin, such as vanillin, syringaldehyde, and 4-methoxy benzaldehyde, represent renewable feedstocks for the synthesis of ionic liquids. We herein report syntheses of novel lignin-derived ionic liquids, with extended N-alkyl chains, and examine their melting points, cellulose dissolution capacities, and toxicity profiles against Daphnia magna and E. coli strain 1A1. The latter organism has been engineered to produce isoprenol, a drop-in biofuel and precursor for commodity chemicals.

Results

The new N,N-diethyl and N,N-dipropyl methyl benzylammonium ILs were liquids at room temperature, showing 75-

SUBMITTER: Liu S 

PROVIDER: S-EPMC7900799 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature