5-HALOGEN-6-AMINO-NIKOTINSAEUREHALOGENIDE, IHRE HERSTELLUNG UND IHRE VERWENDUNG
5-Halo-6-aminonicotinyl halides of the formula (I) in which R represents hydrogen or alkyl, R represents hydrogen, alkyl or acyl, R and R together with the nitrogen atom to which they are bound represent a substituted or unsubstituted heterocyclic radical, R represents halogen, Hal represents haloge...
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| Format: | Patent |
| Sprache: | ger |
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| Zusammenfassung: | 5-Halo-6-aminonicotinyl halides of the formula (I)
in which
R represents hydrogen or alkyl,
R represents hydrogen, alkyl or acyl,
R and R together with the nitrogen atom to which they are bound represent a substituted or unsubstituted heterocyclic radical,
R represents halogen,
Hal represents halogen,
are prepared by halogenating 5-halo-6-aminonicotinic acids of the formula (II)
in which
R, R , R have the abovementioned meanings,
and are used for preparing the corresponding substituted 3-pyridyl alkyl ketones. |
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