[C:1]1(F)([C:6](F)(F)F)[O:3][C:2]1(F)F.F[C:12](F)(F)[C:13](F)=[C:14](F)F.[F:20][C:21]([F:29])([F:28])[C:22]([C:24]([F:27])([F:26])[F:25])=O.[C:30]1([OH:36])[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=1>F.[Ni]>[F:20][C:21]([F:29])([F:28])[C:22]([C:33]1[CH:34]=[CH:35][C:30]([OH:36])=[CH:31][CH:32]=1)([C:13]1[CH:14]=[CH:6][C:1]([OH:3])=[CH:2][CH:12]=1)[C:24]([F:27])([F:26])[F:25]
A mixture of 228 g of hexafluoropropene epoxide and 72 g of hexafluoropropene, and also 220 g of hydrogen fluoride were filled into a 1 liter capacity stainless steel autoclave without a stirring device and the mixture was heated for 20 hours at 100° C. The reaction product, which consisted of a solution of hexafluoroacetone in hydrogen fluoride, was transferred by exploiting its own vapor pressure to a 2.7 liter capacity nickel autoclave, which already contained 258 g of phenol, and the resulting mixture was heated for 8 hours at 100° C. After the hydrogen fluoride and the hexafluoropropene, which did not take part in the reaction, had been distilled off, 399 g of hexafluoro-2,2-bis-(4-hydroxyphenyl)-propane were obtained. This corresponds to a yield of 86.4% of theory.
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