Process for preparing 1,1,1,3,3-pentafluoropropane

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

1995-06-23

1997-03-04

Siegel, Alan

Organic compounds -- part of the class 532-570 series

Organic compounds

Halogen containing

570168, 570172, C07C 1708, C07C 2118

Patent

active

056081260

ABSTRACT:
A process for preparing 1,1,1,3,3-pentafluoropropane, which comprises reacting 1,1-difluoroethylene with dichlorofluoromethane in the presence of a Lewis acid catalyst to form 1,2,2-trihydrodichlorotrifluoropropane and fluorinating the 1,2,2-trihydrodichlorotrifluoropropane with hydrogen fluoride.

REFERENCES:
patent: 5300710 (1994-04-01), Corbin et al.
Journal of Flourine Chemistry, vol. 57, pp. 259-284, 1992, T. Tanuma, et al., "F Nuclear Magnetic Resonance Studies of Halogenated Propaines".
Database WPI, Derwent Publications, AN-92-281673 [34], JP-4-193841, Jul. 13, 1992.

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