Patent ID: 8461401

Claim:
A process for manufacturing cis-hexafluoro-2-butene comprising the steps of: (a) contacting carbon tetrachloride with 3,3,3-trifluoropropene 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 CF 3 CHClCH 2 CCl 3 , (b) contacting HF with the CF 3 CHClCH 2 CCl 3 formed in step (a) under conditions effective to facilitate a fluorination reaction and to form a product stream mixture comprising cis- and trans-1,1,1,4,4,4-hexafluoro-2-butene, and isolating the cis-1,1,1,4,4,4-hexafluoro-2-butene from the mixture.