2781-65-9

Basic information

• Product Name: 2-O-α-L-rhamonopyranosyl-D-glucopyranose
• Synonyms: 2-O-α-L-rhamonopyranosyl-D-glucopyranose
• CAS NO: 2781-65-9
• Molecular Weight: 326.301
• Mol File: 2781-65-9.mol
• Article Data: 6

Chemical Properties

• CAS DataBase Reference: 2-O-α-L-rhamonopyranosyl-D-glucopyranose(CAS DataBase Reference)
• NIST Chemistry Reference: 2-O-α-L-rhamonopyranosyl-D-glucopyranose(2781-65-9)
• EPA Substance Registry System: 2-O-α-L-rhamonopyranosyl-D-glucopyranose(2781-65-9)

Safety Data

• Hazardous Substances Data: 2781-65-9(Hazardous Substances Data)

Upstream product

• 55804-74-5 clitorin 
• 131279-12-4 rhamnosyl-(1<*>2)-O-6)> glucose 
• 5158-64-5 2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl bromide 
• 80832-15-1 benzyl 3-O-benzoyl-4,6-O-benzylidene-2-O-(2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl)-β-D-galactopyranoside 
• 80832-19-5 benzyl 4,6-O-benzylidene-2-O-α-L-rhamnopyranosyl-β-D-galactopyranoside 
• 117181-24-5 benzyl 3-O-benzoyl-4,6-O-benzylidene-β-D-galactopyranoside 
• 100201-60-3 sophoraflavoside I 
• 80832-23-1 benzyl 2-O-α-L-rhamnopyranosyl-β-D-galactopyranoside 
• 10236-47-2 naringin 

Downstream Products

• 3615-41-6 L-Rhamnose 
• 50-99-7 D-glucose 
• 59-23-4 D-Galactose 
• 17073-41-5 Acetic acid (3R,4S,5S,6R)-2,5-diacetoxy-6-acetoxymethyl-3-((2S,3R,4R,5S,6S)-3,4,5-triacetoxy-6-methyl-tetrahydro-pyran-2-yloxy)-tetrahydro-pyran-4-yl ester 

Relevant articles and documents

Thermal Degradation of Glycosides, VI - Hydrothermolysis of Cardenolide and Flavonoid Glycosides

The hydrothermolysis of cardenolide and flavonoid glycosides is described.On heating with water or water/dioxane, cardenolide (1, 5, 11) and flavonoid glycosides (16, 20, 23, 27) are converted into their genuine aglycones and partially hydrolyzed products, together with saccharide components.Meanwhile, the glycosidic linkage of 2-deoxy sugar moieties in cardenolide glycosides is more readily cleaved than that of the common sugar moieties by means of hydrothermolysis.Therefore, hydrothermolysis of the uzarigenin triglycoside (13), bearing a 2-deoxy sugar moiety whichis directly attached to the aglycone, leads to selective cleavage of the sugar-aglycone linkage.The hydrothermolyzed products have been isolated by chromatography and their structures elucidated by spectroscopic methods. Key Words: Thermolysis / Degradation, thermal / Carbohydrates / Glycosides / Cardenolides / Steroids / Flavonoids

SYNTHESIS OF 2-O-α, 3-O-α, 3-O-β, AND 4-O-α-L-RHAMNOPYRANOSYL-D-GALACTOSE

Condensation of benzyl 3-O-benzoyl-4,6-O-benzylidene-, benzyl 2-O-benzoyl-4,6-O-benzylidene- (2), and benzyl 2,3,6-tri-O-benzyl-β-D-galactopyranoside, separately, with tri-O-acetyl-α-L-rhamnopyranosyl bromide gave mainly α-linked disaccharide derivatives.An appreciable proportion of the β-linked disaccharide was also abtained from 2.An anomalous deacylation reaction was found for the (1-->3)-linked disaccharide, and the partially benzoylated products were isolated and characterised.The anomeric configuration of each disaccharide was established on the basis of JC-1,H-1 values.The chemical shifts for the galactose moieties of the α and β-L-rhamnopyranosyl derivatives differed in a systematic way.

Synthesis of some new α and β (1→2) linked disaccharides containing l quinovose (6 deoxy l glucose)

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