VERFAHREN ZUR HERSTELLUNG VON N-PIPERIDINO-1,5- DIPHENYLPYRAZOL-3-CARBOXAMID-DERIVATEN

VERFAHREN ZUR HERSTELLUNG VON N-PIPERIDINO-1,5- DIPHENYLPYRAZOL-3-CARBOXAMID-DERIVATEN

A process for the preparation of for the preparation of N-piperidino-5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methylpyrazole-3-carboxamide and of its salts, wherein 1,5-dibromopentane is reacted with a compound of formula (IIIa) in the presence of Na2CO3 in acetonitrile heated at reflux.

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Bibliographische Detailangaben
Hauptverfasser: DLUBALA, ALAIN, SOLE, RAPHAEL, VAYRON, PHILIPPE, DAUMAS, MARC
Format: Patent
Sprache:ger
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:A process for the preparation of for the preparation of N-piperidino-5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methylpyrazole-3-carboxamide and of its salts, wherein 1,5-dibromopentane is reacted with a compound of formula (IIIa) in the presence of Na2CO3 in acetonitrile heated at reflux.