title: Efficient dehydration of glucose to 5-hydroxymethylfurfural catalyzed by the ionic liquid,1-hydroxyethyl-3-methylimidazolium tetrafluoroborate.
abstract: The dehydration of fructose or glucose to 5-hydroxymethylfurfural (5-HMF) using room temperature ionic liquids (ILs) as a solvent is a promising method for producing liquid fuels from renewable resources. The IL, 1-hydroxyethyl-3-methylimidazolium tetrafluoroborate ([C(2)OHMIM]BF(4)), was used a catalyst-rather than as a solvent-in the conversion of fructose or glucose to 5-HMF. With glucose, the yield of 5-HMF reached as high as 67.3% after 1h at 180°C in dimethylsulfoxide (DMSO) as solvent. The catalyst was separated from the reaction mixture by distilling solvent and reused six times without loss of activity. Furthermore, a kinetic analysis was carried out to illustrate the formation of 5-HMF, and the values of the activation energy and the pre-exponential factor for the reaction were 55.77 kJ mol(-1) and 1.6 × 10(4)min(-1) respectively.
authors.affiliation: State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
authors.forename: Yongshui
authors.initials: Y
authors.lastname: Qu
authors.forename: Chongpin
authors.initials: C
authors.lastname: Huang
authors.forename: Yanlei
authors.initials: Y
authors.lastname: Song
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang
authors.forename: Biaohua
authors.initials: B
authors.lastname: Chen
mesh_terms: D056804:Biofuels; D002384:Catalysis; D003890:Desiccation / Q000379:methods*; D005662:Furaldehyde / Q000031:analogs & derivatives* / Q000737:chemistry; D005947:Glucose / Q000737:chemistry*; D007093:Imidazoles / Q000737:chemistry*; D007700:Kinetics; D013696:Temperature; D013997:Time Factors
chemical_list: C499119:1-ethyl-3-methylimidazolium tetrafluoroborate; D056804:Biofuels; D007093:Imidazoles; C008046:5-hydroxymethylfurfural; D005662:Furaldehyde; D005947:Glucose