Method of making 1,1,3,3,3-pentafluoropropene

Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing

Reexamination Certificate

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C570S157000, C570S164000, C570S166000, C570S167000, C570S168000, C570S169000

Reexamination Certificate

active

11452856

ABSTRACT:
The invention provides an economic process for the manufacture of the hydrofluorocarbon 1,1,3,3,3-pentafluoropropene (HFC-1225zc). HFC-1225zc can be made from the dehydrochlorination of 1-chloro-1,1,3,3,3-pentafluoropropane (HCFC-235fa). Alternatively, HFC-1225zc can also be made from the dehydrofluorination of 1,1,1,3,3,3-hexafluoropropane (HFC-236fa). HFC-1225zc) is a compound that has the potential to be used as a low Global Warming Potential refrigerant, blowing agent, aerosol propellant, or solvent.

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Henne et al. “Fluorinated Derivatives of Propane and Propylene”. Journal of the American Chemical Society, vol. 68, 1946, pp. 496-497.

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