Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Patent
1997-03-10
1998-06-09
Siegel, Alan
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
570228, C07C 1708
Patent
active
057637059
ABSTRACT:
There are provided production methods of 1,1,1,3,3-pentafluoropropane characterized in that 1,1,1,3,3-pentafluoro-2,3-dichloropropane is reacted with hydrogen fluoride in the presence of a noble metal catalyst; of 1,1,1,3,3-pentafluoro-2-halogeno-3-chloropropane characterized in that the halogenated propene indicated as general formula I is fluorinated in the presence of antimony trihalogenide and/or antimony pentahalogenide by hydrogen fluoride of mole ratio of or over five times the said antimony halogenide in a liquid phase; and of 1,1,1,2,3,3-hexachloropropene characterized in that 1,1,1,2,2,3,3-heptachloropropane is reacted with an aqueous solution of alkali metal hydroxide in the presence of a phase transfer catalyst. Therefore, an industrial manufacturing method which is possible to obtain the objective product easily at low cost and high yield can be provided.
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Aoyama Hirokazu
Nakada Tatsuo
Takubo Seiji
Daikin Industries Ltd.
Siegel Alan
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