Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Branched-chain sugars Grignard reagents

A. Rosenthal and S. N. Mikhailov, Branched-chain sugars. Modifications in the reaction of l,2 5,6-di-0-isopropylidene-a-DTribo-hexofuranos-3-ulose with Grignard and organolithium reagents, J. Carbohydr. Nucleosides Nucleotides 6 237 (1979). [Pg.464]

Aldehyde 13 has been used as starting material for the preparation of branched-chain sugars like 14 by the addition of Grignard reagents followed by oxidation to the ketone and addition of diazomethane. The selectivity of the last reaction was investigated as well as the selectivity of the addition of dimethylsulfonium methylylide."... [Pg.156]

Reaction of Grignard reagents with sulphonate derivatives of methyl D-ribofuranoside leads to rearranged, branched-chain sugars as outlined in Scheme 4 anomerization of these compounds by acidic methanolysis or with Grignard reagents was also studied, the latter favouring the thermodynamically less-stable anomers. ... [Pg.133]

T. D. Inch and G. J. Lewis, The synthesis of branched-chain, deoxysugars by sugar epoxide-Grignard reagent reactions, Carbohydr. Res., 15 (1970) 1-10. [Pg.185]

See other pages where Branched-chain sugars Grignard reagents is mentioned: [Pg.138]    [Pg.208]    [Pg.209]    [Pg.211]    [Pg.211]    [Pg.216]    [Pg.235]    [Pg.253]    [Pg.61]    [Pg.524]    [Pg.111]    [Pg.115]    [Pg.442]    [Pg.443]    [Pg.443]    [Pg.455]    [Pg.510]    [Pg.111]    [Pg.115]    [Pg.442]    [Pg.443]    [Pg.443]    [Pg.455]    [Pg.4]    [Pg.229]    [Pg.115]    [Pg.116]    [Pg.102]    [Pg.160]   
See also in sourсe #XX -- [ Pg.211 , Pg.212 , Pg.235 , Pg.240 , Pg.241 ]



SEARCH



Branched chain

Branched-chain sugars

Chain branching

Sugars branched

© 2024 chempedia.info