219953-85-2

Upstream product

• 57783-66-1 benzyl 4,6-O-benzylidene-2,3-tri-O-benzyl-β-D-glucopyranoside 
• 67831-42-9 benzyl 2,3,6-tri-O-benzyl-β-D-glucopyranoside 
• 100-51-6 benzyl alcohol 
• 572-09-8 2,3,4,6-tetra-O-acetyl-α-D-glucopyranosyl bromide 
• 10343-13-2 benzyl-2,3,4,6-tetra-O-acetyl-β-D-glucopyranoside 
• 4304-12-5 (2R,3R,4S,5S,6R)-2-(benzyloxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol 
• 1125-88-8 benzaldehyde dimethyl acetal 
• 219953-84-1 benzyl O-(3-O-allyl-2,4,6-tri-O-benzyl-α-D-glucopyranosyl)-(1->4)-2,3,6-tri-O-benzyl-β-D-glucopyranoside 

Relevant academic research and scientific papers

Dehydrative glycosylation by diethylaminosulfur trifluoride (DAST) - tin(II) trifluoromethanesulfonate-tetrabutylammonium perchlorate - triethylamine system

Dehydrative glycosylation using 2,3,4,6-tetra-O-benzyl-D-glucopyranose was carried out by the use of a condensing reagent system composed of diethylaminosulfur trifluoride (DAST), tin(II) triflate, tetrabutylammonium perchlorate, and triethylamine. Using this system, two tetrasaccharides, O- a-D-glucopyranosyl-(1→4)-O-α-D-glucopyranosyl-(1→3)-Oα-D-glucopyranosyl- (1→4)-D-glucopyranose and O-a-D-glucopyranosyl-(1→3)-O-α-D- glucopyranosyl-(1→4)-O-α-D-glucopyranosyl-(1→4)-D-glucopyranose, were synthesized.