Method for producing fluorinated organic compounds

1. A method of preparing fluorinated organic compounds comprising converting in a gas phase at least one compound of formula (I):

CF n X m CF a X b CH 2 X  (I)

to at least one compound of formula (II):

CF 3 CF═CHF  (II)

where each X is independently Cl, I or Br; n is 2 or 3; m is 0 or 1; a is 1 or 2; b is 0 or 1; m+n=3; and a+b=2.

2. The method of claim 1 wherein said compound of formula (I) is formed by a method comprising reacting a fluorinated C2 olefin with CH 2 FCl.

3. The method of claim 2 wherein said fluorinated C2 olefin comprises tetrafluoroethylene.

4. The method of claim 1 wherein said converting step is carried out under conditions effective to provide a formula (I) conversion of at least about 40%.

5. The method of claim 1 wherein said converting step is carried out under conditions effective to provide a formula (I) conversion of at least about 90%.

6. The method of claim 4 wherein said converting step is carried out under conditions effective to provide a formula (II) selectivity of at least about 40%.

7. The method of claim 5 wherein said converting step is carried out under conditions effective to provide a formula (II) selectivity of at least about 90%.

8. The method of claim 1 wherein said converting step comprises introducing said compound of formula (I) into a reactor containing catalyst or combination of catalysts.

9. The method of claim 8 wherein said catalyst is selected from the group consisting of carbon, activated carbon, fluorinated chromium oxide, fluorinated alumina and combinations of these.

10. The method of claim 1 wherein said converting step is a continuous process.