Method for preparing 1,1,1,3,3-pentafluoropropane

Details Method for preparing 1,1,1,3,3-pentafluoropropane Method for preparing 1,1,1,3,3-pentafluoropropane

C - Chemistry, Metallurgy

07

C

C07C 19/08 (2006.01) C07C 17/20 (2006.01) C07C 17/278 (2006.01) C07C 19/01 (2006.01)

Patent

CA 2232421

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.

Du 1,1,1,3,3-pentafluoropropane est produit par réaction entre du 1,1,1,3,3- pentachloropropane et du fluorure d'hydrogène, en présence d'un catalyseur d'hydrofluoration. Le 1,1,1,3,3-pentachloropropane peut avantageusement être obtenu par réaction entre du chlorure de vinyle et du tétrachlorométhane en présence d'un catalyseur de télomérisation et d'un nitrile.

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