10339-41-0

Upstream product

• 81126-98-9 1,6-anhydro-2,3,4-tri-O-benzyl-β-D-altropyranose 

Downstream Products

• 116730-96-2 1,6-anhydro-3-O-benzyl-β-D-altropyranose 
• 116836-99-8 1,6-anhydro-4-O-benzyl-β-D-altropyranose 
• 71019-59-5 1,6-Anhydro-endo-3,4-O-bezyliden-β-D-altropyranose 
• 71019-59-5 1,6-Anhydro-exo-3,4-O-benzyliden-β-D-altropyranose 
• 5694-94-0 1,3-Dioxolan-2,4-dicarbonsaeure 
• 118895-82-2 1,6-anhydro-2-O-benzyl-β-D-altropyranose 
• 118895-80-0 1,6-anhydro-2,3-di-O-benzyl-β-D-altropyranose 
• 118895-81-1 1,6-anhydro-4-O-benzoyl-2,3-di-O-benzyl-β-D-altropyranose 
• 81413-17-4 8-methoxycarbonyloctyl 2,4-di-O-benzyl-α-D-glucopyranoside 
• 81413-21-0 8-methoxycarbonyloctyl-2,4-di-O-benzyl-3,6-di-O-<2,4-di-O-benzyl-3,6-dideoxy-α-L-xylo-hexopyranosyl>-α-D-glucopyranoside 
• 81413-14-1 3,6-di-O-acetyl-2,4-di-O-benzyl-α-D-glucopyranosyl chloride 
• 81413-16-3 8-methoxycarbonyloctyl 3,6-di-O-acetyl-2,4-di-O-benzyl-β-D-glucopyranoside 
• 81413-15-2 8-methoxycarbonyloctyl 3,6-di-O-acetyl-2,4-di-O-benzyl-α-D-glucopyranoside 
• 17073-95-9 1,6-anhydro-3,4-isopropylidene-D-galactopyranose 

Relevant academic research and scientific papers

Cycloheptaamylose as a model for starch in the pyrolysis of polysaccharides

The pyrolysis of cycloheptaamylose has been studied as a model for starch. 1,6-Anhydro-β-D-glucopyranose (levoglucosan, LG, 7) and its furanose isomer are major products from vacuum pyrolysis at 280, 300, and 320°, with combined yields ranging from 38 to 50% of the substrate-dependent on temperature. Pyrolysis in methyl sulfoxide at 150° produced LG and glucose as well as gluco-oligosaccharides of d.p. up to 7, with both reducing and 1,6-anhydro end-groups. A mechanism is postulated in which the first step is the heterolytic scission of a glucosidic linkage to form a linear, seven-membered oligosaccharide having a glucosyl cation in place of the reducing end-group. The cation is stabilized either by intramolecular attack of O-6 on the C-1 cation or by intermolecular transglycosylation. The former product subsequently yields LG upon scission of a terminal glucosidic linkage. The pyrolysis of cycloheptaamylose has been studied as a model for starch. 1,6-Anhydro-β-D-glucopyranose (levoglucosan, LG, 7) and its furanose isomer are major products from vacuum pyrolysis at 280, 300, and 320°, with combined yields ranging from 38 to 50% of the substrate dependent on temperature. Pyrolysis in methyl sulfoxide at 150° produced LG and glucose as well as gluco-oligosaccharides of d.p. up to 7, with both reducing and 1,6-anhydro end-groups. A mechanism is postulated in which the first step is the heterolytic scission of a glucosidic linkage to form a linear, seven-membered oligosaccharide having a glucosyl cation in place of the reducing end-group. The cation is stabilized either by intramolecular attack of O-6 on the C-1 cation or by intermolecular transglycosylation. The former product subsequently yields LG upon scission of a terminal glucosidic linkage.