METHOD FOR PREPARING 1-ALKYL-3-DIFLUOROMETHYL-5-FLUOR-1H-PYRAZOLE-4-CARBALDEHYDES AND 1-ALKYL-3-DIFLUOROMETHYL-5-FLUOR-1H-PYRAZOLE-4-CARBOXYLATES

METHOD FOR PREPARING 1-ALKYL-3-DIFLUOROMETHYL-5-FLUOR-1H-PYRAZOLE-4-CARBALDEHYDES AND 1-ALKYL-3-DIFLUOROMETHYL-5-FLUOR-1H-PYRAZOLE-4-CARBOXYLATES

The present invention relates to a novel method for preparing 1-alkyl-3-difluoromethyl-5-fluor-1H-pyrazole-4-carbaldehydes or esters thereof of formula (I) by means of reductive dehalogenation, starting from 1-alkyl-3-chlorodifluoromethyl-5-fluoro-1H-pyrazole-4-carbaldehydes or esters thereof Formul...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PAZENOK, Sergii, LUI, Norbert
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:The present invention relates to a novel method for preparing 1-alkyl-3-difluoromethyl-5-fluor-1H-pyrazole-4-carbaldehydes or esters thereof of formula (I) by means of reductive dehalogenation, starting from 1-alkyl-3-chlorodifluoromethyl-5-fluoro-1H-pyrazole-4-carbaldehydes or esters thereof Formula (I).