86420-69-1

Basic information

• Product Name: methyl 4,6-O-benzylidene-β-D-galactopyranoside 2-O-p-toluenesulfonate
• Synonyms: methyl 4,6-O-benzylidene-β-D-galactopyranoside 2-O-p-toluenesulfonate
• CAS NO: 86420-69-1
• Molecular Weight: 436.483
• Mol File: 86420-69-1.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: methyl 4,6-O-benzylidene-β-D-galactopyranoside 2-O-p-toluenesulfonate(CAS DataBase Reference)
• NIST Chemistry Reference: methyl 4,6-O-benzylidene-β-D-galactopyranoside 2-O-p-toluenesulfonate(86420-69-1)
• EPA Substance Registry System: methyl 4,6-O-benzylidene-β-D-galactopyranoside 2-O-p-toluenesulfonate(86420-69-1)

Safety Data

• Hazardous Substances Data: 86420-69-1(Hazardous Substances Data)

Upstream product

• 18423-93-3 methyl-[O³-ethoxycarbonyl-O⁴,O⁶-((S)-benzylidene)-α-D-galactopyranoside] 
• 98-59-9 p-toluenesulfonyl chloride 
• 71117-36-7 methyl 4,6-O-(S)-benzylidene-β-D-galactopyranoside 
• 35780-89-3 methyl-[O²-(toluene-4-sulfonyl)-β-D-galactopyranoside] 

Downstream Products

• 86420-78-2 methyl 2,3-anhydro-4,6-O-benzylidene-β-D-talopyranoside 
• 2484-81-3 methyl-[O²-acetyl-3-acetylamino-O⁴,O⁶-((S)-benzylidene)-3-deoxy-β-D-idopyranoside] 

Relevant articles and documents

SELECTIVE ESTERIFICATION OF METHYL 4,6-O-BENZYLIDENE-α-D- AND β-D-GALACTOPYRANOSIDE IN A CATALYTIC TWO-PHASE SYSTEM

Selective tosylation of methyl 4,6-O-benzylidene-α-D- (1) and β-D-galactopyranoside (8) in a catalytic two-phase system (CTP system) yields preferentially 2-O-p-toluenesulfonate and 3-O-p-toluenesulfonate, respectively.In the course of unimolar benzoylation of 1 and 8, under similar conditions, a migration of the acyl group takes place and an equilibrium mixture is obtained.Esterification of 1 and 8 with benzoyl chloride under CTP conditions, in presence of an aqueous sodium hydroxide solution, saturated with sodium perchlorate, afforded in preponderant yields 2-O-benzoate and 3-O-benzoate, respectively.