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Benzylated thioglycosyl donor

In this case, the 6-O-trityl group improved the a-sclcctivity of the glycosylation because of the steric effects. The trityl ether of the resulting product can act as an acceptor when it is glycosylated with a fully benzylated thioglycosyl donor using NIS... [Pg.232]

One of the exan les for oligosaccharide synthesis was shown below, a-Selective glycosylation was effected by virtue of die solvent effect of ether using 2-O-benzylated thioglycosyl donors. Since the solubilities of glycosyl acceptors having the barbituric acid tag in ether were low, a mixture of ether-dioxane was used as the reaction solvent. The combination of PhIO and TMSOTf was enqiloyed as die promoter of thioglycoside (8). [Pg.91]


See other pages where Benzylated thioglycosyl donor is mentioned: [Pg.206]    [Pg.45]    [Pg.71]    [Pg.206]    [Pg.45]    [Pg.71]    [Pg.223]    [Pg.232]    [Pg.123]    [Pg.567]    [Pg.79]    [Pg.80]    [Pg.85]    [Pg.89]    [Pg.219]    [Pg.224]   
See also in sourсe #XX -- [ Pg.288 ]




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Thioglycosyl donor

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