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Acid‐Catalyzed Conversion of Sugars and Furfurals in an Ionic‐Liquid Phase
Author(s) -
Sievers Carsten,
Musin Ildar,
Marzialetti Teresita,
Valenzuela Olarte Mariefel B.,
Agrawal Pradeep K.,
Jones Christopher W.
Publication year - 2009
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.200900092
Subject(s) - furfural , chemistry , monosaccharide , ionic liquid , xylose , organic chemistry , catalysis , hydroxymethyl , fructose , selectivity , fermentation
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).