Patent
Method for producing benzylated fructofuranose derivative and benzylated aldose derivative by acid hydrolysis of perbenzylated sucrose oligosaccharide
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In this article, a fructofuranosyl bond of a perbenzylated sucrose oligosaccharide is selectively hydrolyzed by using 75% aqueous solution of sulfuric acid in dioxane.Abstract:
PROBLEM TO BE SOLVED: To provide a method for efficiently producing 3-O-(2,3,4,6-tetra-O-benzyl-α-D-glucopyranosyl)-1,4,6-tri-O-benzyl-D-fructofuranose, 6-O-(2,3,4,6-tetra-O-benzyl-α-D-galactopyranosyl)-2,3,4-tri-O-benzyl-D-glucopyranose, and a benzylated D-fructofuranose derivative and a benzylated aldose derivative containing di- or multi-saccharide oligosaccharide by the selective acid hydrolysis of a fructofuranosyl bond of a perbenzylated sucrose oligosaccharide. SOLUTION: A fructofuranosyl bond of a perbenzylated sucrose oligosaccharide is selectively hydrolyzed by using 75% aqueous solution of sulfuric acid in dioxane. COPYRIGHT: (C)2008,JPO&INPITread more
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Tetra-O-benzyl or -allyl-D-glucopyranose prepn.
TL;DR: In this article, a 2,3,4,6-tetra-O-(benzyl or allyl)-D-glucopyranose of formula (I) is decomposed in an organic solvent with addn. of an acid (e.g. HCl), reacting for 20-60 mins. at 50-60 deg C and purifying the crude prod. by crystallisation.
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