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Transglycosylation reactions of permethylated methyl d-glucopyranosides with partially methylated 1,5-anhydroalditols

✍ Scribed by Chang Kiu Lee; Eun Ju Kim

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 413 KB
Volume: 280
Category: Article
ISSN: 0008-6215
DOI: 10.1016/0008-6215(95)00290-1

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✦ Synopsis

Transglycosylation of methyl 2,3,4,6-tetra-O-methyl-alpha- and beta-D-glucopyranosides with 1,5-anhydro-2,3,6-tri-O-methyl-D-glucitol and 1,5-anhydro-2,3,4-tri-O-methyl-D-glucitol took place in the presence of trimethylsilyl trifluoromethanesulfonate or boron trifluoride etherate, resulting in the formation of disaccharide derivatives. A disaccharide which could have been formed by the transglycosylation reaction of the intermediates was observed during the reductive-cleavage reaction of permethylated pullulan.

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