Appeal No. 95-2958
Application 08/108,570
claims in the application, stand withdrawn from consideration
by the examiner as being directed toward a nonelected
invention.
THE INVENTION
Appellants claim a method for making one or more
specified halogenated compounds by reacting 1,1,2,3,4,4-
hexachloro-1,3-butadiene and hydrogen fluoride in the gas
phase in the presence of a fluorinating catalyst. Claim 1 is
illustrative and reads as follows:
1. A method for preparing at least one halogenated
compound selected from the group consisting of 1,1,1,4,4,4,-
hexafluoro-2,3-dichlorobutane, 1,1,1,4,4,4-hexafluoro-2-
chloro-2-butene, 1,1,1,2,4,4,4-heptafluoro-2-butene and
1,1,1,2,2,4,4,4-octafluorobutane, which comprises reacting
1,1,2,3,4,4-hexachloro-1,3-butadiene with hydrogen fluoride in
a gas phase in the presence of a fluorinating catalyst.
THE REFERENCES
Minklei 3,965,201 Jun. 22,
1976
Fiske et al. (Fiske) 4,147,733 Apr. 3,
1979
Bielefeldt et al. (Bielefeldt) 5,146,019 Sep. 8,
1992
REJECTIONS
2
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