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Glucofuranurono-6,3-lactones synthesis

The most efficient synthesis of L-gulono-1,4-lactone (1) entails the reduction of D-glucofuranurono-6,3-lactone (7), which can be obtained from D-glucose2 (see Scheme 1). Catalytic hydrogenation3-4 of 7 in the presence of Raney nickel afforded 1 in 81% yield. Alternatively, D-... [Pg.288]

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]

An improved synthesis based on the same strategy was devised by Driguez and Henrissat [52]. These workers took advantage of the regiospecifically available position C-5 in 1,2-0-iso-propylidene-a-D-glucofuranurono-6,3-lactone (28). This easily accessible starting material was 0-sulfonylated with tosyl chloride followed by reduction of the lactone moiety and... [Pg.2005]

See other pages where Glucofuranurono-6,3-lactones synthesis is mentioned: [Pg.201]    [Pg.231]    [Pg.468]    [Pg.133]    [Pg.59]    [Pg.404]    [Pg.389]    [Pg.314]    [Pg.163]    [Pg.117]    [Pg.21]    [Pg.104]    [Pg.313]    [Pg.98]   
See also in sourсe #XX -- [ Pg.37 , Pg.118 ]



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