Journal
CHEMSUSCHEM
Volume 9, Issue 16, Pages 2089-2096Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/cssc.201600313
Keywords
5-hydroxymethylfurfural; catalysis; cellulose; green chemistry; ionic liquids
Funding
- Swiss National Science Foundation National Research Programme [NRP 66]
- National University of Singapore
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Platform chemicals are usually derived from petrochemical feedstocks. A sustainable alternative commences with lignocellulosic biomass, a renewable feedstock, but one that is highly challenging to process. Ionic liquids (ILs) are able to solubilize biomass and, in the presence of catalysts, convert the biomass into useful platform chemicals. Herein, we demonstrate that mixtures of ILs are powerful systems for the selective catalytic transformation of cellulose into 5-hydroxymethylfurfural (HMF). Combining ILs with continuous HMF extraction into methyl-isobutyl ketone or 1,2-dimethoxyethane, which form a biphase with the IL mixture, allows the online separation of HMF in high yield. This one-step process is operated under relatively mild conditions and represents a significant step forward towards sustainable HMF production.
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