abstract |
1,1,1,3,3-pentafluoropropane may be prepared by reacting 1,1,1,3,3-pentachloropropane with hydrogen fluoride in the presence of a hydrofluorination catalyst. The 1,1,1,3,3-pentachloropropane may advantageously be prepared by reacting vinyl chloride with tetrachloromethane in the presence of a telomerisation catalyst and a nitrile. |