Acid-catalyzed conversion of sugars and furfurals in an ionic-liquid phase.
The reactivity of monosaccharides, furfural, and 5-hydroxymethyl-2-furfural (HMF) in the presence of a Brønsted acid (added as H(2)SO(4)) in the ionic liquid 1-butyl-3-methylimidazolium chloride (BMImCl) is investigated at 120 °C. Fructose is converted much faster than mannose, glucose, and xylose and yields HMF with high selectivity, even in the absence of acid. Conversion of mannose, glucose, and xylose involves more complex reaction networks. Only small amounts of furfural and HMF are converted in the absence of other reactants but both compounds are consumed when monosaccharides and their degradation products are present. Acid-catalyzed degradation reactions also lead to the formation of solid residues (humins).
Sievers
Carsten
C
School of Chemical & Biomolecular Engineering, Georgia Institute of Technology, 311 Ferst Drive, Atlanta, GA 30332-0100, USA.
Musin
Ildar
I
Marzialetti
Teresita
T
Olarte
Mariefel B Valenzuela
MB
Agrawal
Pradeep K
PK
Jones
Christopher W
CW
D002384:Catalysis; D005663:Furans / Q000138:chemical synthesis* / Q000737:chemistry; D007093:Imidazoles / Q000737:chemistry*; D009005:Monosaccharides / Q000737:chemistry*; D013464:Sulfuric Acids / Q000737:chemistry*
D005663:Furans; D007093:Imidazoles; D009005:Monosaccharides; D013464:Sulfuric Acids; C502841:1-butyl-3-methylimidazolium chloride; C033158:sulfuric acid