Process for the preparation of perfluoroalkanones
AssigneeDaikin Industries, Ltd.
InventorsKouzou Noda, Hirokazu Aoyama
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Abstract
The present invention provides a process for producing a linear perfluoroalkanone or a perfluorocycloalkanone, which comprises using as a starting material a combination of the same or different kinds of compounds that are selected from perfluoroalkanoyl halides represented by the formula: F(CF2)nCOX wherein X is F, Cl, Br or I and n is an integer of 1 to 8, or a perfluoroalkanedioyl dihalide represented by the formula: XOC(CF2)nCOX wherein X is F, Cl, Br or I and n is an integer of 3 to 8, and reacting the starting material with a metal carbonate or metal carbonates. According to the present invention, perfluoroalkanones can be produced with a good yield from relatively easily available starting materials by a simple synthesis method.
Claims6
A process for producing a linear perfluoroalkanone comprising:
- reacting a starting material with a metal carbonate or metal carbonates to perform an intermolecular reaction of the starting material,
- the starting material being a combination of the same or different kinds of compounds that are selected from perfluoroalkanoyl halides represented by the formula:
- F(CF2)nCOX wherein X is F, Cl, Br or I and n is an integer of 1 to 8.
A process for producing a perfluorocycloalkanone comprising:
- reacting a metal carbonate or metal carbonates with a perfluoroalkanedioyl dihalide represented by the formula:
- XOC(CF2)nCOX wherein X is F, Cl, Br or I and n is an integer of 3 to 8 to perform an intramolecular reaction of the perfluoroalkanedioyl dihalide.
Dependencies are inferred from the claim text.