Patent ID: 8426655

Claim:
A process for the manufacture of 1,1,1,4,4,4-hexafluoro-2-butene comprising the steps of: (a) contacting carbon tetrachloride with ethylene in the presence of an effective amount of a metal catalyst complex comprising a metal and an organic ligand under conditions effective to facilitate an addition reaction and to form a product stream comprising 1,1,1,2,4,4,4-heptachlorobutane, and (b) contacting HF with the 1,1,1,2,4,4,4-heptachlorobutane formed in step (a) under conditions effective to facilitate a fluorination reaction and to form a product stream mixture comprising 1,1,1,4,4,4-hexafluoro-2-butene and/or 1,1,1,4,4,4-hexafluoro-2-chlorobutane and isolating the 1,1,1,4,4,4-hexafluoro-2-butene therefrom.