Ilgen, Florian and Ott, D. and Kralisch, D. and Reil, Christian and Palmberger, Agnes and König, Burkhard (2009) Conversion of carbohydrates into 5-hydroxymethylfurfural in highly concentrated low melting mixtures. Green Chemistry (11), pp. 1948-1954.
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Highly concentrated melt systems consisting of choline chloride (ChCl) and up to 50 wt% of
carbohydrates, corresponding to carbohydrate concentrations of 2.9 to 3.1 mol/L, have been used
for the conversion of the carbohydrate content into 5-hydroxymethylfurfural (HMF) in the
presence of catalysts. Apart from the monosaccharides D-fructose and D-glucose, the disaccharide
sucrose and the polyfructan inulin were successfully converted into HMF. The reported conditions
with short reaction times at high concentrations may allow for high space-time yields, which may
be of interest for the development of efficient continuous processes for the conversion of
carbohydrates into HMF. In a preliminary ecological evaluation, the ChCl/D-fructose system is
compared to other representative solvents for the synthesis of 5-hydroxymethylfurfural. The melts
have an inherent low toxicological impact due to their negligible vapour pressure.
|Institutions:||Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Burkhard König|
|Subjects:||500 Science > 540 Chemistry & allied sciences|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||23 Dec 2009 11:42|
|Last Modified:||02 Nov 2011 09:53|