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Tetra-O-benzyl-a-D-glucopyranosyl bromid

A route to a-glycosides involves treatment of a 2,3,4,6-tetra-O-benzyl-a-D-glucopyranosyl bromide with an alcohol, tetraethylammonium bromide, and diisopropylethylamine in CH2C12. Explain the stereoselectivity of this reaction. [Pg.287]

Efforts to condense tetra-O-benzyl-a-D-glucopyranosyl bromide with indole in liquid ammonia failed, but resulted, instead, in the isolation of crystalline 3,4,6-tri-0-benzyl-2-(benzyloxy)-D-glucal.51a... [Pg.220]

Whereas glycosylations of methyl 4,6-O-benzylidene-a-D-altropyranoside with tetra-O-benzyl-a-D-glucopyranosyl bromide or trichloroacetimidate give mainly the p-(l- 3)-linked disaccharide, the corresponding diazirine reacts mainly at 0-2. A rationalization is provided. ... [Pg.28]

See other pages where Tetra-O-benzyl-a-D-glucopyranosyl bromid is mentioned: [Pg.47]    [Pg.41]    [Pg.62]    [Pg.62]    [Pg.29]    [Pg.302]    [Pg.38]    [Pg.93]    [Pg.259]    [Pg.266]    [Pg.286]    [Pg.70]    [Pg.73]    [Pg.568]    [Pg.287]    [Pg.80]    [Pg.82]    [Pg.1109]    [Pg.1162]    [Pg.38]    [Pg.82]    [Pg.30]    [Pg.169]   
See also in sourсe #XX -- [ Pg.25 ]



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2.3.4.6- Tetra-O-benzyl-D-glucopyranosyl

Benzyl bromide

Benzylic bromide

D-glucopyranosyl bromide

Glucopyranosyl bromide

O--D-Glucopyranosyl

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