Hexafluoropropylene oxide → 3,3,3-Trifluoro-2-(trifluoromethyl)-1-propene

HRID 247232

Reaction equation

HRID 247232 reaction equation
F[C:2](F)(F)C1(F)OC1(F)F.[F:11][C:12]([F:20])([F:19])[C:13]([C:15]([F:18])([F:17])[F:16])=O>>[F:11][C:12]([F:20])([F:19])[C:13](=[CH2:2])[C:15]([F:18])([F:17])[F:16]

Participants

3

Reactant 2

HCID 9883Hexafluoropropylene oxide2×HCID 12695Hexafluoroacetone

Product 1

HCID 914503,3,3-Trifluoro-2-(trifluoromethyl)-1-propene

Procedure

In the form of the present invention starting from hexafluoropropylene oxide, a vapor stream of hexafluoropropylene oxide is fed at any convenient flow rate, e.g., in the range of about 0.04 to about 0.06 g-mole/hr to a reactor maintained at a temperature in the range of about 400° to about 650° C. and containing a fluorinated catalyst (hereinafter described) for a residence time sufficient to for a vapor stream comprising hexafluoroacetone which is not isolated but forwarded directly to a heating zone of the reactor for conversion to hexafluoroisobutylene.

Workup

  1. temperaturemaintained at a temperature in the range of about 400° to about 650° C.
  2. additioncontaining a fluorinated catalyst (

Sources & evidence

ORD record
ord-101e106531384738ad69ad1cab1045f8
Source dataset
uspto-grants-1987_11
Patent number
US04705904

Linked notes

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