Call us toll-free

Rare earth-saccharide chemistry: Synthesis and ..

T1 - De novo asymmetric synthesis of rhamno di- and tri-saccharides related to the anthrax tetrasaccharide

Approximate price

Pages:

275 Words

$19,50

Enzymes in preparative mono- and oligo-saccharide synthesis C

AB - An asymmetric synthesis of the di- and tri-saccharide portion of the naturally occurring anthrax tetrasaccharide from acetylfuran has been developed. The construction of the di- and tri-saccharide subunits is based upon our previously disclosed route to anthrax tetrasaccharide. The approach uses iterative diastereoselective palladium-catalyzed glycosylations, Luche reductions, diastereoselective dihydroxylations, and regioselective protections for the assembly of the rhamno-di- and tri-saccharide. The route was also modified for the preparation of the mixed d-/l-di-saccharide analogue.

Synthesis of Saccharide-Terminated Poly(ε-caprolactone) via Michael Addition and 'Click' Chemistry.

Core/shell structured microwave responsive catalysts with carbon nanotube (CNT) core and acidified TiO2 shell were synthesized in this work for catalytic conversion of saccharide to 5-hydroxymethylfurfural (HMF). The microstructures and surface properties of these hybrid composites were carefully characterized. With such a structure of inner microwave absorber and outer catalyst shell, the heat generated at the core area by microwave radiation can be translated to the shell catalyst directly. Such localized heating allows maximum heat utilization in the reaction and enhances the energy efficiency of the catalytic reaction. The energy efficiency of HMF formation reaches up to 4.2 mol·kJ–1·L–1 by using CNT/TiO2 catalyst, which is six-times higher compared to pure TiO2. The reaction can be completed within 30 min. The effects of TiO2 shell thickness, annealing temperature, catalyst concentration, and microwave power on the saccharide conversion and HMF yield were systematically investigated. These catalysts have been demonstrated effective in the hydrolysis conversion of various saccharides, such as fructose, glucose, and sucrose.

Enzymes in preparative mono- and oligo-saccharide synthesis

Five other cellulase preparations from different origins were tested as well for catalysis of oligosaccharide acrylate synthesis.

An asymmetric synthesis of the di- and tri-saccharide portion of the naturally occurring anthrax tetrasaccharide from acetylfuran has been developed. The construction of the di- and tri-saccharide subunits is based upon our previously disclosed route to anthrax tetrasaccharide. The approach uses iterative diastereoselective palladium-catalyzed glycosylations, Luche reductions, diastereoselective dihydroxylations, and regioselective protections for the assembly of the rhamno-di- and tri-saccharide. The route was also modified for the preparation of the mixed d-/l-di-saccharide analogue.

Cleavage of Carbamates to Isocyanates: Selectivity, Extension to the Solid Support, and Synthesis of Multivalent Glycoforms With Inter-Saccharide Carbamate Linkages.

Synthesis of oligosaccharide dendrimers — University …

This approach was demonstrated in the synthesis of the saccharide-linker moieties of the four glucopyranosyl-beta-D-glucopyranosides.

N2 - An asymmetric synthesis of the di- and tri-saccharide portion of the naturally occurring anthrax tetrasaccharide from acetylfuran has been developed. The construction of the di- and tri-saccharide subunits is based upon our previously disclosed route to anthrax tetrasaccharide. The approach uses iterative diastereoselective palladium-catalyzed glycosylations, Luche reductions, diastereoselective dihydroxylations, and regioselective protections for the assembly of the rhamno-di- and tri-saccharide. The route was also modified for the preparation of the mixed d-/l-di-saccharide analogue.

S., Synthesis of Readily Modifiable Cyclodextrin Analogues via Cyclodimerization of an Alkynyl-Azido Trisaccharide.
Order now
  • Enzyme-Catalyzed Synthesis of Saccharide Acrylate …

    Lanthanide-saccharide chemistry: synthesis and characterisation of Ce ..

  • Exopolysaccharide synthesis - UniProt

    Syntheses, Conformations and X-Ray Structure Analyses of the Saccharide Chains from the Core Regions of Glycoproteins

  • Industrial Chemical - Carbon Disulphide Manufacturer …

    Three novel oligosaccharides synthesized usingThermoanaerobacter brockiikojibiose phosphorylase SpringerLink

Order now
  • Kim

    "I have always been impressed by the quick turnaround and your thoroughness. Easily the most professional essay writing service on the web."

  • Paul

    "Your assistance and the first class service is much appreciated. My essay reads so well and without your help I'm sure I would have been marked down again on grammar and syntax."

  • Ellen

    "Thanks again for your excellent work with my assignments. No doubts you're true experts at what you do and very approachable."

  • Joyce

    "Very professional, cheap and friendly service. Thanks for writing two important essays for me, I wouldn't have written it myself because of the tight deadline."

  • Albert

    "Thanks for your cautious eye, attention to detail and overall superb service. Thanks to you, now I am confident that I can submit my term paper on time."

  • Mary

    "Thank you for the GREAT work you have done. Just wanted to tell that I'm very happy with my essay and will get back with more assignments soon."

Ready to tackle your homework?

Place an order