10357-01-4

Upstream product

• 67-56-1 methanol 
• 685-73-4 D-galacturonic acid 
• 643-33-4 D-galacturonic acid 

Downstream Products

• 186696-14-0 C₂₉H₂₆O₁₀ 
• 155023-02-2 (S)-tert-Butoxycarbonylamino-[(2R,3S,4R,5R)-3,4-dihydroxy-5-(5-methyl-2,4-dioxo-3,4-dihydro-2H-pyrimidin-1-yl)-tetrahydro-furan-2-yl]-acetic acid benzyl ester 

Relevant academic research and scientific papers

METHANOLYSIS STUDIES OF CARBOHYDRATES, USING H.P.L.C.

An h.p.l.c. system that separates carbohydrates as their methyl glycosides has been used to study the products obtained on treatment of various carbohydrates with methanolic hydrogen chloride.Results are presented for the monosaccharide composition of several polysaccharides, lactone and ester formation during the treatment of D-glucuronic acid, and relative rates of glycosidation vs. esterification during the treatment of D-galacturonic acid.

PROTON AND CARBON-13 NUCLEAR MAGNETIC RESONANCE STUDIES ON METHYL (METHYL D-GALACTOSID)URONATES AND THEIR PER-O-ACETYL DERIVATIVES

The 1H- and 13C-n.m.r. spectra of the anomeric methyl (methyl D-galactosid)uronates, as well as the 1H-n.m.r. spectra of their acetyl derivatives, were analyzed.The spectra of the unacetylated D-galactopyranosiduronates showed good correlation with those of the corresponding anomeric D-galactopyranuronic acids and their methyl esters, and with those of the anomeric methyl D-galactopyranosides.From the values of the chemical shifts and coupling constants, it was concluded that the anomeric methyl (methyl D-galactopyranosid)uronates and their corrasponding peracetates are in the 4C1(D) conformation.The chemical shifts in the 13C-n.m.r. spectra show good correlation with those of the methyl D-galactosides.The signals of the furanose derivatives appear at fields lower than those of the corresponding pyranose compounds.