A method of converting (E)1-chloro-3,3,3-trifluoropropene into (Z)1-chloro-3,3,3-trifluoropropene, comprising:
- providing a reaction mixture comprising (E)1-chloro-3,3,3-trifluoropropene and, optionally, (Z)-1-chloro-3,3,3-trifluoropropene;
- heating said reaction mixture to temperature of greater than 400° C. for a period of time and under conditions effective to form a product mixture comprising a concentration of (Z)1-chloro-3,3,3-trifluoropropene that is greater than that provided in the reaction mixture.