215295-18-4

Basic information

• Product Name: 4,6-Benzylidene-β-D-galactopyranosyl-(1->4)-1,2,3,6-tetra-O-benzoyl-α-D-mannopyranose
• CAS NO: 215295-18-4
• Molecular Weight: 846.841
• Mol File: 215295-18-4.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: 4,6-Benzylidene-β-D-galactopyranosyl-(1->4)-1,2,3,6-tetra-O-benzoyl-α-D-mannopyranose(CAS DataBase Reference)
• NIST Chemistry Reference: 4,6-Benzylidene-β-D-galactopyranosyl-(1->4)-1,2,3,6-tetra-O-benzoyl-α-D-mannopyranose(215295-18-4)
• EPA Substance Registry System: 4,6-Benzylidene-β-D-galactopyranosyl-(1->4)-1,2,3,6-tetra-O-benzoyl-α-D-mannopyranose(215295-18-4)

Safety Data

• Hazardous Substances Data: 215295-18-4(Hazardous Substances Data)

Upstream product

• 1125-88-8 benzaldehyde dimethyl acetal 
• 158717-24-9 1,2,3,6-tetra-O-benzoyl-4-O-(2,3,4,6-tetra-O-acetyl-β-D-galactopyranosyl)-α-D-mannopyranose 

Downstream Products

• 233675-39-3 2,3,4,6-Tetra-O-benzoyl-β-D-gulopyranosyl-(1->4)-1,2,3,6-tetra-O-benzoyl-α-D-mannopyranose 
• 233675-42-8 2,3,4,6-Tetra-O-benzoyl-β-D-gulopyranosyl-(1->4)-2,3,6-tri-O-benzoyl-α-D-mannopyranose 
• 233675-34-8 2,3-Di-2-O-benzoyl-4,6-benzylidene-β-D-gulopyranosyl-(1->4)-1,2,3,6-tetra-O-benzoyl-α-D-mannopyranose 
• 233675-36-0 C₅₄H₄₆O₁₆ 
• 2592-58-7 1,2,3,4,6-penta-O-benzoyl-α-D-mannopyranoside 
• 233675-31-5 C₄₈H₄₁F₃O₁₇S 

Relevant articles and documents

Synthesis of β-D-talopyranosides and β-D-mannopyranosides via intramolecular nucleophilic substitution

The selective and efficient syntheses of β-D-talopyranosides and β-D-mannopyranosides were achieved from β-D-galactopyranosides and β-D-glucopyranosides, respectively, that carry a benzoyl group at O-3 and a triflyl group at O-2. The transformation was performed in the presence of an alcohol via intramolecular nucleophilic attack of the benzoyl group with inversion of configuration at C-2 that provided, first, the formation of the corresponding 2,3-(alkyl orthobenzoates) of the desired β-D-talopyranosides or β-D-mannopyranosides, followed by acidic opening of the cyclic orthoesters.