Phenyl glycosides – Solid-state NMR, X-ray diffraction and conformational analysis using genetic algorithm was written by Walejko, Piotr;Bukowicki, Jaroslaw;Dobrzycki, Lukasz;Socha, Pawel;Paradowska, Katarzyna. And the article was included in Chemical Physics in 2019.Name: (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate The following contents are mentioned in the article:
The X-ray structures of 2,6-dimethylphenyl and Ph 2,3,4,6-tetra-O-acetyl β-glucosides and Ph α-mannoside were obtained. The independent part of the unit cell of the glycosides was formed by one mol., and for another glucoside, two mols. in the crystal cell were observed In deacetylated glycosides the crystal structure was established by a hydrogen bond network formed between the sugar hydroxyls and solvent mols. The 13C CPMAS NMR spectra of aryl glycosides were analyzed. In the spectrum of Ph peracetylated glucoside, doubling of the C4 aryl signal was observed which confirmed the presence of two independent mols. in the solid sample. The GAAGS (Genetic Algorithm-Assisted Grid Search) method was used to determine the low-energy conformers of α-mannosides and β-glucosides. The orientation of the aryl pendant group was calculated using Mol. Mechanics (MMFF94) as well as Quantum Mechanics theory (DFT, B3LYP/6-31 + G(d,p)). This study involved multiple reactions and reactants, such as (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3Name: (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate).
(2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate (cas: 604-69-3) belongs to esters. Esters are widespread in nature and are widely used in industry. In nature, fats are in general triesters derived from glycerol and fatty acids. Esters are responsible for the aroma of many fruits, including apples, durians, pears, bananas, pineapples, and strawberries. Acyl chlorides and acid anhydrides alcoholysis is another way to produce esters. Acyl chlorides and acid anhydrides react with alcohols to produce esters. Anydrous conditions are recommended since both acyl chlorides and acid anhydrides react with water.Name: (2S,3R,4S,5R,6R)-6-(Acetoxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetrayl tetraacetate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics