NMR studies of the tautomer distributions of d‑fructose in lower alcohols/DMSO‑d6

  title={NMR studies of the tautomer distributions of d‑fructose in lower alcohols/DMSO‑d6},
  author={Kemeng Shi and Christian Marcus Pedersen and Zhaohui Guo and Yanqiu Li and Hongyan Zheng and Yan Qiao and Tuoping Hu and Yingxiong Wang},
  journal={Journal of Molecular Liquids},
The Role of Solvent in Tautomer Solvate Crystallization: A Case of 6-Amino-1,3-Dimethyl-5-Nitrosouracil
Tautomers are structural isomers that readily interconvert and may exhibit different properties. The effect of solvent on tautomeric equilibria in solution has been a subject of some research.
Mechanistic aspects of saccharide dehydration to furan derivatives for reaction media design
The conversion of abundant hexoses (e.g. glucose, mannose and galactose) and pentoses (e.g. xylose and arabinose) to 5-hydroxymethylfurfural (5-HMF) and 2-furfural (2-F) is subject to intensive
CaCl2 molten salt hydrate-promoted conversion of carbohydrates to 5-hydroxymethylfurfural: an experimental and theoretical study
Alkaline earth metal salts are environmentally friendly and economical. They have attracted much attention in the process of biomass conversion, especially for isomerization and dehydration. However,
Controlling the Reaction Networks for Efficient Conversion of Glucose to 5-Hydroxymethylfurfural.
This review is expected to provide a guidance to design practical catalytic processes for pushing the HMF biorefinery by developing multifunctional catalysts and promoters, taking advantages of solvent effects and process intensification, and synergizing all measures will be comprehensively discussed.
Solvent Effects on Degradative Condensation Side Reactions of Fructose in Its Initial Conversion to 5-Hydroxymethylfurfural.
This month's cover shows a general understanding on the solvent-controlled formation of oligomers accompanying with formation of small-molecular carboxylic acids as by-products in the initial reaction stage of fructose dehydration.


Solvent effect on pathways and mechanisms for D-fructose conversion to 5-hydroxymethyl-2-furaldehyde: in situ 13C NMR study.
Noncatalytic reactions of D-fructose were kinetically investigated in dimethylsulfoxide (DMSO), water, and methanol as a function of time at temperatures of 30-150 °C by applying in situ (13)C NMR
An in Situ NMR Study of the Mechanism for the Catalytic Conversion of Fructose to 5-Hydroxymethylfurfural and then to Levulinic Acid Using 13C Labeled d-Fructose
The pathways for the formation of 5-hydroxymethylfurfural (HMF) by dehydration of d-fructose and for the formation of levulinic acid and formic acid from HMF by rehydration were investigated by in
Sustainable Solvent Systems for Use in Tandem Carbohydrate Dehydration Hydrogenation
Monophasic separation-friendly solvent systems were investigated for the sustainable acid-catalyzed dehydration of fructose to 5-hydroxymethylfurfural (HMF). The HMF selectivity depends on both
Reaction Pathway Analysis of Ethyl Levulinate and 5-Ethoxymethylfurfural from d-Fructose Acid Hydrolysis in Ethanol
This study uses numerical modeling to provide a mechanistic discussion of the synthesis of the advanced biofuel candidates, ethyl levulinate and 5-ethoxymethylfurfural, from α/β-d-fructopyranose
NMR Insights on the Properties of ZnCl2 Molten Salt Hydrate Medium through Its Interaction with SnCl4 and Fructose
The solvent properties of ZnCl2 molten salt medium and its synergic effect with the Lewis acid catalyst, Sn4+, for biomass conversion, were investigated by nuclear magnetic resonance. The tautomeric