141242-48-0

Basic information

• Product Name: methyl 2,3,6,2',3'-penta-O-acetyl-4',6'-O-benzylidene-α-maltoside
• CAS NO: 141242-48-0
• Molecular Weight: 654.622
• Mol File: 141242-48-0.mol
• Article Data: 3

Chemical Properties

• CAS DataBase Reference: methyl 2,3,6,2',3'-penta-O-acetyl-4',6'-O-benzylidene-α-maltoside(CAS DataBase Reference)
• NIST Chemistry Reference: methyl 2,3,6,2',3'-penta-O-acetyl-4',6'-O-benzylidene-α-maltoside(141242-48-0)
• EPA Substance Registry System: methyl 2,3,6,2',3'-penta-O-acetyl-4',6'-O-benzylidene-α-maltoside(141242-48-0)

Safety Data

• Hazardous Substances Data: 141242-48-0(Hazardous Substances Data)

Upstream product

• 1125-88-8 benzaldehyde dimethyl acetal 
• 108-24-7 acetic anhydride 
• 744-05-8 methyl α-D-glucopyranosyl-(1->4)-α-D-glucopyranoside 
• 7216-69-5 methyl β-D-lactopyranoside 
• 137119-40-5 methyl 4-O-(4,6-O-benzylidene-β-D-galactopyranosyl)-β-D-glucopyranoside 

Downstream Products

• 141242-52-6 methyl 2,3,6,2',3'-penta-O-acetyl-6'-deoxy-6'-iodo-4'-O-p-toluenesulfonyl-α-maltoside 
• 141242-54-8 methyl 2,3,6-tri-O-acetyl-4-O-<2,3-di-O-acetyl-6-deoxy-4-O-(4-toluenesulfonyl)-α-D-xylo-hex-5-enopyranosyl>-α-D-glucopyranoside 
• 141242-50-4 methyl 2,3,6,2',3'-penta-O-acetyl-4',6'-di-O-toluenesulfonyl-α-maltoside 
• 129905-23-3 methyl 2,3,6-tri-O-acetyl-4-O-(2,3-di-O-acetyl-4-O-benzoyl-6-bromo-6-deoxy-β-D-galactopyranosyl)-β-D-glucopyranoside 

Relevant articles and documents

FeCl3 mediated arylidenation of carbohydrates

Glycosides and thioglycosides based on monosaccharides in reaction with benzaldehyde dimethylacetal or p-methoxybenzaldehyde dimethyl acetal undergo FeCl3-catalyzed (20 mol %) regioselective 4,6-O-arylidenation producing the corresponding acetals in high yields. FeCl3 also mediates acetalation of glycosides and thioglycosides of cellobiose, maltose, and lactose affording the corresponding 4′,6′-O-benzylidene acetals, which were isolated after their acetylation in situ with acetic anhydride and pyridine. The combined yields (two steps) of these final products are also high (61-84%). The procedure is applicable to a wide variety of functional groups including -OBn.

Spacer-modified, photolabile tetrasaccharides as analogues of maltopentaose are versatile probes for porcine pancreatic alpha-amylase

The syntheses are described of methyl 4'-O--α-maltoside (28), methyl 4-O--α-D-glucopyranoside