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METHYL BROMIDE.26 Vol

Anhydro-l,4-di-0-benzyl-L-threitol on reaction with allylmagnesium bromide, osmium tetroxide, sodium periodate then HCl affords methyl 3-C-(benzyloxymethyl)-2,3-dideoxy-L-r/ireo-pentofuranoside as a useful intermediate for the synthesis of 2 3 -dideoxy-3 -C-(hydroxymethyl)-4 -thionucleosides. In an alternative route to such nucleosides the intermediate branched-sugar 50 was prepared in which the hydroxymethyl group was introduced into the 3-position by a light-induced addition of methanol to 6-O-rerr-butyldimethylsilyl-D-g/yceru-pent-2-eno-1,4-lactone (see Vol. 26, p. 242, ref. 159). ... [Pg.200]

See other pages where METHYL BROMIDE.26 Vol is mentioned: [Pg.393]    [Pg.405]    [Pg.387]    [Pg.399]    [Pg.382]    [Pg.393]    [Pg.386]    [Pg.397]    [Pg.386]    [Pg.397]    [Pg.382]    [Pg.393]    [Pg.352]    [Pg.393]    [Pg.405]    [Pg.387]    [Pg.399]    [Pg.382]    [Pg.393]    [Pg.386]    [Pg.397]    [Pg.386]    [Pg.397]    [Pg.382]    [Pg.393]    [Pg.352]    [Pg.252]    [Pg.35]    [Pg.478]    [Pg.693]    [Pg.127]   


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