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US 5,965,775 AGranted
Process for the preparation of 3,5-difluoroaniline
AssigneeClariant GmbH
InventorsRalf Pfirmann, Stefan Krause
Life of this patent
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Abstract
The present invention relates to a process for the preparation of 3,5-difluoroaniline by reacting 3,5-difluorochlorobenzene with ammonia in the presence of a solvent in the presence of a copper compound and at least one metal selected from the group consisting of copper, iron, cobalt, nickel, chromium, molybdenum and zinc, at 100 to 250.degree. C.
Claims22
A process for the preparation of 3,5-difluoroaniline, which comprises:
- reacting 3,5-difluorochlorobenzene with ammonia in the presence of a solvent and a catalyst at 100 to 250.degree. C.;
- said catalyst comprising a copper compound and at least one metal, said metal being selected from the group consisting of copper, iron, cobalt, nickel, chromium, molybdenum and zinc.
Dependencies are inferred from the claim text.