Patent ID: 7230146

Claim:
A dehydrohalogenation process for the preparation of fluoropropenes of the formula CF 3 CY═CX N H P , wherein X and Y are independently hydrogen or a halogen selected from the group consisting of fluorine, chlorine, bromine and iodine; and N and P are independently integers equal to 0,1 or 2, provided that (N+P)=2; comprising reacting without a catalyst, a halopropane of the formula: CF 3 C(YR 1 )C(X N H P R 2 ) wherein R 1 , R 2 , X and Y are independently hydrogen or a halogen selected from the group consisting of fluorine, chlorine, bromine and iodine, provided that at least one of R 1 , R 2 , X and Y is a halogen and there is at least one hydrogen and one halogen on adjacent carbon atoms; with a caustic solution of at least one alkali metal or alkaline earth metal hydroxide in a non-aqueous, non-alcohol solvent for said alkali metal or alkaline earth metal hydroxide that is essentially miscible with said halopropane, wherein the reaction is performed within a temperature range at which dehydrohalogenation will occur.