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2-Oxazolines, pyridyl-, lithiation

Significantly improved yields of pyridine-3-carboxylic acids are obtained by oxidising 2,5- and 5,6-dihalo-3-methylpyridines with tetrabutylammonium permanganate rather than with potassium permanganate.Pyridyl oxazolines derived from pyridine-3- and - -carboxylic acids on treatment with a lithiating reagent (methyllithium or lithium 2,2,6,6-tetramethylpiperidide) followed by an electrophile, provide - and 3- substituted pyridines in good yield. 7 Photolysis of pyridine-2,3-dicarboxylic acid... [Pg.304]

See other pages where 2-Oxazolines, pyridyl-, lithiation is mentioned: [Pg.248]    [Pg.41]    [Pg.17]    [Pg.37]    [Pg.257]    [Pg.298]    [Pg.37]    [Pg.191]    [Pg.358]    [Pg.44]   
See also in sourсe #XX -- [ Pg.52 , Pg.257 , Pg.288 , Pg.289 , Pg.290 ]



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Pyridyls

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