2011/11/03 by Igor A. Ignatyev, Charlie Van Doorslaer, Pascal G. N. Mertens +2 · 2 citations
Engineering · Materials Science · #Catalysis for Biomass Conversion #Biofuel production and bioconversion #Advanced Cellulose Research Studies
paper · doi:10.1515/hf.2011.161
openalex publication_date 2011/11/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/02
Abstract The transformation of cellulose into glucose ester α- d -glucose pentaacetate (GPAc) was carried out in ionic liquid 1-butyl-3-methylimidazolium chloride under mild reaction conditions. The reaction comprises two steps: the first involves a hydrolysis reaction, yielding α- d -glucose and glucose oligomers; and then only after some time, the acetylating reagent acetic anhydride is added. Under optimized conditions and with the acidic resin Amberlyst 15DRY as a hydrolysis catalyst, a 70% yield of GPAc was obtained. This product could be quantitatively isolated by simple liquid-liquid extraction, which allowed easy recycling of the ionic liquid and catalyst.