1,2,3,3,3-Pentafluoropropene → Hydrofluoric Acid

HRID 449728Notes

Reaction equation

HRID 449728 reaction equation
[F:1]C(F)(F)C(F)CF.[F:9][C:10]([F:16])([F:15])[C:11]([F:14])=[CH:12][F:13].FC(F)(F)C(F)(Cl)C(F)(Cl)Cl>>[FH:1].[F:9][C:10]([F:16])([F:15])[CH:11]([F:14])[CH2:12][F:13]

Participants

5

Reactant 3

HCID 1110771,2,3,3,3-Pentafluoropropene2×HCID 1645981,1,1,2,3-PentafluoropropaneHCID 109444651,1,2-Trichloro-1,2,3,3,3-pentafluoropropane

Product 2

HCID 14917Hydrofluoric AcidHCID 1645981,1,1,2,3-Pentafluoropropane

Procedure

In one embodiment, 1,1,1,2,3-pentafluoropropane is prepared by hydrogenation of 1,1,1,2,3-pentafluoro-2-propene. In another embodiment, 1,1,1,2,3-pentafluoropropene is prepared by hydrogenation of 1,1,1,2,3-pentafluoro-2,3,3-trichloropropane (CFC-215bb). In some embodiments, hydrogen fluoride is produced as a by-product via the unintended dehydrofluorination of 1,1,1,2,3-pentafluoropropane over a hydrogenation catalyst, to produce 1,1,1,2-tetrafluoropropene and hydrogen fluoride. Under the hydrogenation conditions, 1,1,1,2-tetrafluoropropene is hydrogenated to 1,1,1,2-tetrafluoropropane. In some embodiments, hydrogen fluoride is produced as a by-product via the over hydrogenation of 1,1,1,2,3-pentafluoropropane which produces 1,1,1,2-tetrafluoropropane.

Sources & evidence

ORD record
ord-67dce213de37403291cd6b33f2d1167a
Source dataset
uspto-grants-2013_07
Patent number
US08486293B2

Reaction notes

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