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N-Methylquinolinium salt

The importance of quinolinium salts to dye chemistry accounts for the long, productive history of their synthesis. The reaction of Al-methylformanilide with ketones, aldehydes, ketone enamines. or enol acetates in phosphoryl chloride leads lo high yields of N-methylquinolinium salts. [Pg.1400]

N-Methylquinolinium iodide, 283 N-Methylquinolinium salt, 285 N-Methyltetrahydroquinoline, 284 Monothiooxalate derivative, 129 Morpholino enamine, 324... [Pg.188]

A-Methylpyridinium or A-methylquinolinium salts [246] may be oxidized to the N-methyl-2-pyridone or A-methyl-2-quinolone, respectively, in alkaline medium containing some potassium hexacyanoferrate (III). The reaction is probably an indirect electrolysis in which the hexacyanoferrate oxidizes the pseudobase and is, in turn, reoxidized at the anode. [Pg.690]

Ricinus communis.—The specific intermediates between nicotinic acid and ricinine are unknown a reasonable biosynthetic pathway is illustrated in Scheme 10. Robinson and co-workers have obtained a crude enzyme from R. communis seedlings, and resolved it by chromatography on DEAE-cellulose into three components, all of which catalysed the oxidation of 3-cyano-l-methylpyridinium perchlorate (43) to the pyridones (46) and (47). The optimum activity for ail these fractions was between pH 9.S and 10.S. The enzymes were relatively non-specific. All the following pyridinium salts were oxidized 3-formyl-l-methylpyridinium iodide, 3-nitro-l-methylpyridinium iodide, 3-acetyl-l-methylpyridinium iodide, 3-cyano-l-ethylpyridinium iodide, and l-benzyl-3-cyanopyridinium chloride. N-Methylnicotinamide, trigonelline sulphate, 1-methylpyridinium iodide, nicotinic acid, 1-methylquinolinium iodide, and 3-cyanopyridine, were not oxidized to any appreciable extent. [Pg.122]

Et ether, picrate Yellow needles (EtOH). Mp 180-181°. N-Me, inner salt I-Methylquinolinium-8-olate. 8-Hydroxy-I-methylquinolinium betaine C10H9NO M 159.187 Cryst. + 2H2O. Mp 130° dec. [Pg.611]


See other pages where N-Methylquinolinium salt is mentioned: [Pg.580]    [Pg.310]    [Pg.326]    [Pg.285]    [Pg.580]    [Pg.310]    [Pg.326]    [Pg.285]    [Pg.233]    [Pg.224]    [Pg.425]    [Pg.429]    [Pg.239]    [Pg.116]    [Pg.257]   
See also in sourсe #XX -- [ Pg.285 ]




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