Cyclic hydrocarbon perfluorination process

C - Chemistry – Metallurgy – 07 – C

Patent

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260/654.1, 260/2

C07C 23/18 (2006.01) C07C 17/10 (2006.01) C07C 23/20 (2006.01) C07C 23/32 (2006.01) C07C 23/38 (2006.01)

Patent

CA 1122597

ABSTRACT OF THE DISCLOSURE Perfluorinated polycyclic hydrocarbons may be produced in high yield by a three-stage process comprising contacting a cyclic hydrocarbon such as an alkyladamantane with a fluoride of silver, manganese, sulfur or the like under vary- ing reaction conditions, generally in the liquid state, to provide a partially fluorinated cyclic hydrocarbon. This fluorination is followed by a second stage vapor phase reaction with a fluoride of cobalt, manganese, silver or the like at temperatures generally just above the boiling point of the ma- terial to yield highly fluorinated cyclic compounds, followed by a third stage reaction with the same reagent at substantially higher temperatures to provide the desired perfluorinated material.

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