Supporting Information Conversion and Kinetics Study of Fructose-to-5- Hydroxymethylfurfural (HMF) Using Sulfonic and Ionic Liquid Groups Bi-functionalized Mesoporous Silica Nanoparticles as Recyclable Solid Catalysts in DMSO Systems
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Conversion of Fructose to 5-hydroxymethyl- Furfural with a Functionalized Ionic Liquid
Fructose can be efficiently converted to 5-hydroxymethylfurfural by using the functionalized ionic liquid 3-(2-chloroethyl)-1-methylimidazolium chloride as both solvent and catalyst in the presence of water. This work advances the field and is distinct from earlier efforts in the sense that the observed yields of HMF from fructose are rather high and the reaction conditions rather mild and neut...
متن کاملDirect Transformation of Fructose and Glucose to 5- Hydroxymethylfurfural in Ionic Liquids under Mild Conditions
Direct dehydration of fructose and glucose to 5-hydroxymethylfurfural (5HMF) was studied using ionic liquids (ILs) without adding any catalysts. Various ILs were screened, and the highest 5-HMF yield of 95.6% was obtained using 1-butyl-3-methylimidazolium tosylate ([BMIM][TSO]) at 353 K for 30 min. Proton nuclear magnetic resonance (H NMR) spectra confirmed that the sulfonate hydrolysates of an...
متن کاملApplication of Nanoanalysis: Amine-Functionalized Mesoporous Silica nanoparticles for Mercury Speciation in Human Samples
Mercury (Hg) causes hazardous cumulative effects in humans; like central nervous system disorders,hypertension and chromosomal aberrations. Therefore, due to high toxicity and bioaccumulationfactor, mercury determination and speciation in human blood is very important. A sensitive,accurate, precise and inexpensive method was demonstrated for preconcentration and speciationof ultra-trace mercury...
متن کاملOne-pot conversion of disaccharide into 5-hydroxymethylfurfural catalyzed by imidazole ionic liquid
Conversion of carbohydrate into 5-hydroxymethylfurfural (5- HMF), a versatile, key renewable platform compound is regarded as an important transformation in biomass-derived carbohydrate chemistry. A variety of ILs, not only acidic but also alkaline ILs, were synthesized and used as catalyst in the production of 5-HMF from disaccharide. Several factors including reaction temperature, IL dosage, ...
متن کاملBis-sulfonic acid ionic liquids for the conversion of fructose to 5-hydroxymethyl-2-furfural.
Homogenous bis-sulfonic acid ionic liquids (1 mol equiv.) in DMSO (10 mol equiv.) at 100 °C efficiently mediated the conversion of D-fructose into 5-hydroxymethyl-2-furfural in 75% isolated yield, which was roughly a 10% increment compared to the case of the mono-sulfonic acid ionic liquids.
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تاریخ انتشار 2012