Patent ID: 8383867

Claim:
A method of preparing fluorinated organic compounds comprising (a) reacting at least one fluorinated C2 olefin with at least one addition agent under conditions effective to produce a compound of formula (I), CF 3 CF n CH m X a-m (I) where each X is independently Cl, I or Br; n is 1 or 2; m is 1, 2 or 3, a is 2 or 3, and a-m ≧0, provided that when n is 1, m is 1 or 2 and provided that valence of each carbon atom is satisfied, wherein at least one fluorinated C2 olefin comprises a compound of formula III CY 2 ═CY 2 (III) where each Y is independently F, Cl, I or Br, provided that there is at least one F on each carbon atom, and wherein at least one addition agent comprises a compound of formula (IV) CH m Y a-m (IV) where m is 1, 2 or 3; a is 4, and a-m≧0; (b) dehydrohalogenating the at least one compound of formula (I) to at least one compound of formula (II) CF 3 CZ═CHZ (II) in the presence of hydrogen as a reducing agent that reduces at least one compound of formula (I) to at least one compound of formula (II), wherein each Z is independently H or F and where at least one compound of formula I is not the same as at least one compound of formula II.