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5a-Carba-a-D-glucopyranose

Similarly, 180 was transformed into 5a-carba-a-D-glucopyranose penta-acetate (98) and 5a-carba- 8-L-idopyranose pentaacetate (183). [Pg.49]

Controlled cA-dihydroxylation of the olefinic double bond of alcohol 141 allowed preparation of 5a-carba-a-D-glucopyranose (142), whilst 5a-carba-a-D-mannopyranose (146) and 5a-carba-P-D-glucopyranose (147) were prepared through epoxidation, ring opening, and final deprotection. Unfortunately, an attempt to obtain the P anomer of 146 by cis-... [Pg.472]

Slight changes in protecting groups of the cyclization precursor (Scheme 8.22) allowed the syntheses of 5a-carba-a-D-glucopyranose and 5a-carba-a-D-galactopyranose. Thus, as shown in Scheme 8.23, compound 81 was obtained from D-mannose in a similar fashion as for derivative 77 and gave, under radical cyclization conditions, carbocychc compounds 82 and 83 in 74% yield as a... [Pg.382]

See other pages where 5a-Carba-a-D-glucopyranose is mentioned: [Pg.368]    [Pg.368]    [Pg.372]    [Pg.383]    [Pg.384]    [Pg.389]    [Pg.389]    [Pg.390]    [Pg.393]    [Pg.394]    [Pg.352]    [Pg.352]    [Pg.356]    [Pg.367]    [Pg.368]    [Pg.373]    [Pg.373]    [Pg.374]    [Pg.377]    [Pg.378]    [Pg.36]   
See also in sourсe #XX -- [ Pg.13 , Pg.188 , Pg.215 , Pg.219 ]

See also in sourсe #XX -- [ Pg.13 , Pg.188 , Pg.215 , Pg.219 ]



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A d Glucopyranose

A- -Glucopyranose

Carba

D-Glucopyranose

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