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Glucofuranurono-6,3-lactones methylation

Proton Coupling-Constants of Methyl fi- (25) and a-D-Glucofuranosidurono-6,3-lactone (26), and l,2-0-Isopropylidene-a-D-glucofuranurono-6,3-lactone (33)... [Pg.207]

When 2-4-0-ethylidene-D-glucofuranurono-6,3-lactone [obtained by the hydrolysis of thioacetal 61 (Ph = Et)] was treated with 5,5-dimethyl-l,3-cyclohexanedione (dimedone), 6-deoxy-6,6-bis(4,4-di-methyl-2,6-dioxocyclohexyl)-3,5-0-ethylidene-L-gulono-1,4-lactone (73) was formed in 71% yield.99... [Pg.311]

Base-catalyzed esterification of D-glucurono-6,3-lactone proceeds smoothly at room temperature.242 The acetylated glycuronic acids, and the per-O-acetylglycosyluronic halides of their methyl esters, are important precursors for the synthesis of glycosiduronic acids. D-Glucofuranurono-6,3-lactone... [Pg.228]

See other pages where Glucofuranurono-6,3-lactones methylation is mentioned: [Pg.109]    [Pg.83]    [Pg.63]    [Pg.161]    [Pg.109]    [Pg.83]    [Pg.63]    [Pg.161]    [Pg.194]    [Pg.201]    [Pg.202]    [Pg.203]    [Pg.204]    [Pg.213]    [Pg.213]    [Pg.214]    [Pg.227]    [Pg.229]    [Pg.230]    [Pg.231]    [Pg.218]    [Pg.226]    [Pg.229]    [Pg.191]    [Pg.59]    [Pg.74]    [Pg.21]    [Pg.200]    [Pg.104]    [Pg.115]    [Pg.161]    [Pg.98]   
See also in sourсe #XX -- [ Pg.33 , Pg.202 ]



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Glucofuranurono-6,3-lactone

Glucofuranurono-6,3-lactone methylation

Glucofuranurono-6,3-lactones

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