2-(Trimethylsilyl)ethyl Glycosides. Transformation into the Corresponding. 1-O-Acyl Sugars

Ellervik, Ulf (författare): Lund University,Lunds universitet,Lunds Tekniska Högskola,Faculty of Engineering, LTH

Magnusson, Göran (författare): Lund University,Lunds universitet,Lunds Tekniska Högskola,Faculty of Engineering, LTH

(creator_code:org_t)

Danish Chemical Society, 1993
1993
Engelska.
Ingår i: Acta Chemica Scandinavica. - : Danish Chemical Society. - 0904-213X. ; 47:8, s. 826-828

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Abstract Ämnesord

Stäng

(Trimethylsilyl)ethyl 2,3,4,6-tetra-O-acetyl-beta-D-glucopyranoside and (trimethylsilyl)ethyl 2,3,6-tri-O-acetyl-4-O-(2,3,6-tri-O-acetyl-4-O-[2-acetamido-4,6-di-O-ace tyl-2- deoxy-3-O-(2,3,4,6-tetra-O-acetyl-beta-D-galactopyranosyl)-beta-D- galactopyranosyl]-beta-D-galactopyranosyl)-beta-D-glucopyranoside have been transformed in high yield into the corresponding 1-O-beta-acyl saccharides by treatment with various carboxylic anhydrides in the presence of boron trifluoride-diethyl ether in toluene. The carboxylic anhydrides (4-pentenoic, 2-cyclopentenylacetic, 2,4-dimethoxy-benzoic, and 2-methoxybenzoic anhydride) were synthesized from the corresponding carboxylic acids by treatment with N,N-bis[2-oxo-3-oxazolidinyl]phosphorodiamidic chloride.

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