VERFAHREN ZUR HERSTELLUNG VON 3-CHLOR-5-TRIFLUORMETHYLPYRIDINEN

VERFAHREN ZUR HERSTELLUNG VON 3-CHLOR-5-TRIFLUORMETHYLPYRIDINEN

A process for producing a 3-chloro-5-trifluoromethylpyridine derivative comprises reacting a 5-trifluoromethylpyridine derivative having a hydrogen atom at 3-position with chlorine. The process is characterized by reacting said 5-trifluoromethylpyridine derivative with chlorine in a vapour phase in...

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Bibliographische Detailangaben
Hauptverfasser: YOSHIZAWA, HIROSHI, ISOGAI, TATSUO, MIYAJI, MIKIO
Format: Patent
Sprache:ger
Schlagworte:
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Beschreibung
Zusammenfassung:A process for producing a 3-chloro-5-trifluoromethylpyridine derivative comprises reacting a 5-trifluoromethylpyridine derivative having a hydrogen atom at 3-position with chlorine. The process is characterized by reacting said 5-trifluoromethylpyridine derivative with chlorine in a vapour phase in the presence of a catalyst selected from the group consisting of activated carbon and a chloride of a metal element selected from the group consisting of iron, antimony, copper and zinc.