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Glycosyl fluorides enzyme-catalyzed reactions

Glycosides may also be prepared by enzyme-catalyzed condensation reactions utilizing a glycosyl fluoride. Thus 6-0-a-maltosylcyclodextrins were prepared enzymically from a-maltosyl fluoride (obtained from the corresponding heptaacetate by Zemplen deacetylation) and cyclodex-trins. " ... [Pg.116]

In this manner, both /3- and a-D-xylosyl fluoride generate a-D-xylose, in the former instance by stereochemical inversion and in the latter by stereochemical retention. The series of events is reflected in each of the inverting glycosidases listed above. The reactions are unique not only because they involve hydrolysis of both (albeit truncated) substrate anomers, but the enzymes also catalyze an uncommon nonhydrolytic condensation reaction using the activated glycosyl fluoride. [Pg.200]

See other pages where Glycosyl fluorides enzyme-catalyzed reactions is mentioned: [Pg.121]    [Pg.358]    [Pg.1785]    [Pg.261]    [Pg.234]    [Pg.232]    [Pg.637]    [Pg.15]    [Pg.407]    [Pg.267]    [Pg.273]    [Pg.301]    [Pg.179]    [Pg.19]    [Pg.179]    [Pg.19]    [Pg.298]    [Pg.979]   
See also in sourсe #XX -- [ Pg.121 ]

See also in sourсe #XX -- [ Pg.48 , Pg.121 ]



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Enzyme-catalyzed

Enzyme-catalyzed reactions

Enzymes catalyze

Glycosyl fluorides fluoride)

Glycosyl fluorides glycosylations

Glycosylation glycosyl fluoride catalyzed

Glycosylation reactions

Glycosylation, glycosyl fluorides

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