1,3-dimethyl-5-fluoro-pyrazole-4-carbonyl fluoride

A new process for the preparation of a known 1,3-dimethyl-5-fluoro-pyrazole-4-carboxanilide of the formula in which Ar represents optionally substituted phenyl, which process comprises a) reacting in a first stage, 1,3-dimethyl-5-chloro-pyrazole-4-carbonyl chloride with a fluoride, if appropriate in...

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Bibliographische Detailangaben
Hauptverfasser:	GALLENKAMP, BERND, MARHOLD, ALBRECHT, ROHE, LOTHAR
Format:	Patent
Sprache:	eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES CHEMISTRY FISHING FORESTRY HETEROCYCLIC COMPOUNDS HUMAN NECESSITIES HUNTING METALLURGY ORGANIC CHEMISTRY PEST REPELLANTS OR ATTRACTANTS PLANT GROWTH REGULATORS PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF TRAPPING
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Beschreibung
Zusammenfassung:	A new process for the preparation of a known 1,3-dimethyl-5-fluoro-pyrazole-4-carboxanilide of the formula in which Ar represents optionally substituted phenyl, which process comprises a) reacting in a first stage, 1,3-dimethyl-5-chloro-pyrazole-4-carbonyl chloride with a fluoride, if appropriate in the presence of a diluent, and b) reacting in a second stage, the 1,3-dimethyl-5-fluoro-pyrazole-4-carbonyl fluoride obtained in this reaction with an aniline of the formulaH2N-Arin which Ar has the abovementioned meaning, if appropriate in the presence of an acid acceptor and if appropriate in the presence of a diluent. 1,3-Dimethyl-5-fluoro-pyrazole-4-carbonyl fluoride as a new compound.