65529-48-8

Basic information

• Product Name: methyl endo-2,3-O-benzylidene-α-L-rhamnopyranoside
• Synonyms: methyl endo-2,3-O-benzylidene-α-L-rhamnopyranoside
• CAS NO: 65529-48-8
• Molecular Weight: 266.294
• Mol File: 65529-48-8.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: methyl endo-2,3-O-benzylidene-α-L-rhamnopyranoside(CAS DataBase Reference)
• NIST Chemistry Reference: methyl endo-2,3-O-benzylidene-α-L-rhamnopyranoside(65529-48-8)
• EPA Substance Registry System: methyl endo-2,3-O-benzylidene-α-L-rhamnopyranoside(65529-48-8)

Safety Data

• Hazardous Substances Data: 65529-48-8(Hazardous Substances Data)

Upstream product

• 1125-88-8 benzaldehyde dimethyl acetal 
• 14917-55-6 methyl 6-deoxy-α-L-mannopyranoside 
• 65475-58-3 methyl 4-O-acetyl-endo-2,3-O-benzylidene-α-L-rhamnopyranoside 

Downstream Products

• 14917-55-6 methyl 6-deoxy-α-L-mannopyranoside 
• 88825-52-9 2-O-benzoyl-4-O-(2,2-dimethyl-propanoyl)-α-L-rhamnopyranoside 
• 71348-34-0 methyl 3,4-di-O-benzyl-2-O-(2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl)-α-L-rhamnopyranoside 
• 75364-77-1 methyl 3,4-di-O-acetyl-2-O-benzyl-α-L-rhamnopyranoside 
• 71348-35-1 methyl 2,4-di-O-benzyl-3-O-(2,3,4-tri-O-acetyl-α-L-rhamnopyranosyl)-α-L-rhamnopyranoside 
• 66320-16-9 methyl α-L-rhamnopyranosyl-(1->2)-α-L-rhamnopyranoside 
• 69558-07-2 methyl-3,4-di-O-benzyl-α-L-rhamnopyranoside 
• 69850-47-1 (2R,3R,4R,5R,6S)-3,5-Bis-benzyloxy-2-methoxy-6-methyl-tetrahydro-pyran-4-ol 
• 61199-76-6 methyl 4-O-benzyl-endo-2,3-O-benzylidene-α-L-rhamnopyranoside 
• 75336-81-1 methyl 2-O-benzyl-α-L-rhamnopyranoside 

Relevant articles and documents

Regioselective Ring Opening of Selected Benzylidene Acetals. A Photochemically Initiated Reaction for Partial Deprotection of Carbohydrates

A new method is described for regioselective partial deprotection of carbohydrates protected as benzylidene acetals.This deprotection was accomplished for each of the six methyl pyranosides (4,5, and 18-21) studied by irradiation of the protected sugar and N-bromsuccinimide (NBS) in the presence of water.Under these conditions the benzylidene (1,3-dioxolane) ring in each compound opened to give a methyl pyranoside with an axial benzoyloxy group and an equatorial hydroxy group.For example, irradiation of methyl 3,4-O-benzylidene (R or S)-6-deoxy-2-O-(2,2-dimethylpropanoyl)-α-L-galactopyranoside (18 or 19) with NBS, barium carbonate, and water resulted in the formation of methyl 4-O-benzoyl-6-deoxy-2-O-(2,2-dimethylpropanoyl)-α-L-galactopyranoside (22) in 72percent yield.In a similar manner compounds 4 and 5 gave 10 and compounds 20 and 21 produced 23.The advantages of the deprotection process are described.