Synthesis of glucose esters from cellulose in ionic liquids

@inproceedings{Ignatyev2011SynthesisOG,
  title={Synthesis of glucose esters from cellulose in ionic liquids},
  author={Igor A. Ignatyev and Charlie Van Doorslaer and Pascal G N Mertens and Koen Binnemans and Dirk De Vos},
  year={2011}
}
Abstract The transformation of cellulose into glucose ester α-d-glucose pentaacetate (GPAc) was carried out in ionic liquid 1-butyl-3-methylimidazolium chloride under mild reaction conditions. The reaction comprises two steps: the first involves a hydrolysis reaction, yielding α-d-glucose and glucose oligomers; and then only after some time, the acetylating reagent acetic anhydride is added. Under optimized conditions and with the acidic resin Amberlyst 15DRY as a hydrolysis catalyst, a 70… Expand

Figures and Tables from this paper

Efficient and rapid direct transesterification reactions of cellulose with isopropenyl acetate in ionic liquids
We describe a conceptually novel protocol that allowed the facile transesterification reaction of cellulose without any additional catalysts and corrosive chemicals. The key concept in this celluloseExpand
1,1,3,3-Tetramethylguanidinium hydrogen sulphate (TMG·HSO4) ionic liquid in carbon dioxide enriched water: a highly efficient acidic catalytic system for the hydrolysis of cellulose
1,1,3,3-tetramethylguanidinium hydrogen sulphate (TMG·HSO4) ionic liquid was used for the hydrolysis of cellulose using water enriched with carbon dioxide as the reaction media. The addition ofExpand
One-pot conversion of cellobiose to mannose using a hybrid phosphotungstic acid–cerium oxide catalyst
A hybrid catalyst composed of phosphotungstic acid coated cerium oxide nanoparticles was demonstrated to catalyze the one-pot conversion of cellobiose, the disaccharide unit of cellulose, to aExpand
Catalytic role of solid acid catalysts in glycerol acetylation for the production of bio-additives: a review
Bio-additives obtained from the acetylation of biodiesel-derived glycerol have been extensively synthesized because of their nature as value-added products and their contribution to environmentalExpand
The Liquefaction of Nipa Frond in an Ionic Liquid, 1-Butyl-3-Methylimidazolium Chloride
Biomass is now regarded as a potential feedstock for the production of renewable chemicals that can be derived from sugar. In this work, nipa frond was liquefied to investigate the behavior changesExpand
Utilization of Ionic Liquids in Lignocellulose Biorefineries as Agents for Separation, Derivatization, Fractionation, or Pretreatment.
TLDR
Imidazolium-based ILs are suitable for processing native LCM, allowing the integral benefit of the feedstocks via separation of polysaccharides and lignin, and the identification of ILs causing limited enzyme inhibition and the utilization of enzymes with improved performance in the presence ofILs. Expand
Ionic Liquids in HPLC and CE: A Hope for Future
TLDR
The present article describes the importance of ILs in high-performance liquid chromatography and capillary electrophoresis, and efforts were also made to highlight the future expectations ofILs. Expand
Pretreatment of softwood dissolving pulp with ionic liquids
Abstract Few Scandinavian pulp mills produce dissolving pulps; however, the demand on textile fibers is increasing. This study investigates the chemical interaction of dissolving pulp with ionicExpand
Esterification of Glycerol With Oleic Acid Over Hydrophobic Zirconia-Silica Acid Catalyst and Commercial Acid Catalyst: Optimization and Influence of Catalyst Acidity
TLDR
It is found that catalyst acidity is a key parameter for catalytic activity and conversion rate and high acidity/acid strength reduced the product yield in the glycerol esterification of OA. Expand
Assessment of different pretreatment technologies for efficient bioconversion of lignocellulose to ethanol.
TLDR
The physiochemical, biochemical and biological pretreatment methods are considered as most promising technologies for the biomass hydrolysis and are discussed in this review article. Expand
...
1
2
...

References

SHOWING 1-10 OF 73 REFERENCES
Cellulose conversion into alkylglycosides in the ionic liquid 1-butyl-3-methylimidazolium chloride
The conversion of cellulose into alkylglycosides is carried out in the ionic liquid 1-butyl-3-methylimidazolium chloride in the presence of an acidic catalyst. Primary alcohols like n-butanol andExpand
Reductive splitting of cellulose in the ionic liquid 1-butyl-3-methylimidazolium chloride.
TLDR
The depolymerization of cellulose is carried out in the ionic liquid 1-butyl-3-methylimidazolium chloride in the presence of hydrogen gas, with sorbitol as the dominant product in 51-74% yield. Expand
Interactions of Ionic Liquids with Polysaccharides 1. Unexpected Acetylation of Cellulose with 1‐Ethyl‐3‐methylimidazolium Acetate
The homogeneous conversion of cellulose in the ionic liquid 1-ethyl-3-methylimidazolium acetate with 2-furoyl chloride, p-toluenesulfonyl chloride, and triphenylmethyl chloride yields surprisinglyExpand
Catalytic conversion of carbohydrates into 5-hydroxymethylfurfural by germanium(IV) chloride in ionic liquids.
Direct conversion of carbohydrates into 5-hydroxymethylfurfural (HMF) catalyzed by germanium(IV) chloride in ionic liquids has been investigated in search of an efficient and environmentally friendlyExpand
Kinetic model for the hydrolysis of lignocellulosic biomass in the ionic liquid, 1-ethyl-3-methyl-imidazolium chloride†
The kinetics of the acid-catalysed hydrolysis of cellobiose in the ionic liquid 1-ethyl-3-methylimidazolium chloride, [C2mim]Cl, was studied as a model for general lignocellulosic biomass hydrolysisExpand
One pot catalytic conversion of cellulose into biodegradable surfactants.
Cellulose has been directly converted into environmentally friendly alkyl glycoside surfactants in a one pot transformation. By working in ionic liquid media with Amberlyst 15Dry (A15) as catalystExpand
Direct transformation of cellulose into 5-hydroxymethyl-2-furfural using a combination of metal chlorides in imidazolium ionic liquid
Direct transformation of cellulose into HMF was carried out using a combination of metal chlorides in ionic liquid [EMIM]Cl. From high throughput screening of various metal chlorides, a combinationExpand
Interaction of ionic liquids with polysaccharides, 8 - synthesis of cellulose sulfates suitable for polyelectrolyte complex formation.
Water-soluble CS with different DS were synthesized by homogeneous conversion of cellulose (microcrystalline cellulose and spruce sulfite pulp) with different sulfating agents in the ionic liquidsExpand
Ammonium-based cellulose solvents suitable for homogeneous etherification.
New ammonium-based cellulose solvents with triethylmethylammonium- and tributylmethylammonium cations and carboxylate anions were synthesized and investigated as potential solvents for cellulose.Expand
Homogeneous modification of cellulose with succinic anhydride in ionic liquid using 4-dimethylaminopyridine as a catalyst
Abstract Cellulose, extracted from sugarcane bagasse, was successfully succinylated in ionic liquid 1-buty-3-methylimidazolium (BMIMCl) using 4-dimethylaminopyridine (DMAP) as a catalyst. ParametersExpand
...
1
2
3
4
5
...