Synthesis of specifically fluorinated methyl β-glycosides of (1→6)-β-d-galacto-oligosaccharides
✍ Scribed by Pavol Kováč; Cornelis P.J. Glaudemans
- Book ID
- 107725388
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 90 KB
- Volume
- 123
- Category
- Article
- ISSN
- 0008-6215
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📜 SIMILAR VOLUMES
## Dissolution of 2-acetamido-2-deoxy-D-glucose (1) or -D-galactose (2) in anhydrous hydrogen fluoride, followed by addition of methanol, gave stereospecifitally the corresponding methyl J?-D-glycopyranosides 7 and 8. When solutions of 1 or 2 in hydrogen fluoride were slowly evaporated, mixtures o
2- and 4-Nitrophenyl beta-D-xylopyranosides (4 and 5) were transformed, via dibutyltin oxidemediated acylation, into the corresponding 2,3-di-O-benzoyl derivatives 11 and 15. Xylobiose and xylotriose were easily isolated by charcoal column chromatography from a commercially available material and co
Condensation of 2,4,6-tri-O-acetyl-3-deoxy-3-fluoro-cr-D-galactop~anosyl bromide (3) with methyl 2,3,4-tri-O-acetyl-/9-D-galactopyranoside (4) gave a fully acetylated (1+6)-/3-D-galactobiose fluorinated at the 3'-position which was deacetylated to give the title disaccharide. The corresponding trisa