PROCESS FOR PREPARING 4-TRIFLUOROMETHYLSULPHINYLPYRAZOLE DERIVATIVE

PROCESS FOR PREPARING 4-TRIFLUOROMETHYLSULPHINYLPYRAZOLE DERIVATIVE

A process for the preparation of a compound of formula (1), R1 represents halogen, haloalkyl, haloalkoxy, R4S(O)n-, or -SF5; R2 represents hydrogen or halogen; R3 represents halogen; R4 represents alkyl or haloalkyl; and n represents 0, 1 or 2; which process comprises oxidising a compound of formula...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PELTA, ISABELLE, CHARREAU, PHILIPPE, CLAVEL, JEAN-LOUIS, LE BARS, SYLVIE
Format: Patent
Sprache:eng ; fre
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
MEASURING
METALLURGY
ORGANIC CHEMISTRY
PHYSICS
TESTING
WEIGHING
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Beschreibung
Zusammenfassung:A process for the preparation of a compound of formula (1), R1 represents halogen, haloalkyl, haloalkoxy, R4S(O)n-, or -SF5; R2 represents hydrogen or halogen; R3 represents halogen; R4 represents alkyl or haloalkyl; and n represents 0, 1 or 2; which process comprises oxidising a compound of formula (II); wherein R1, R2 and W are as defined above, with trifluoroperacetic acid in the presence of a corrosion inhibiting.