Patent ID: 6441256
Filing Date: 2002-08-27
Classification: C07C

Abstract:
A process for the preparation of halohydrocarbons comprising at least 3 carbon atoms, by catalytic reaction between a haloalkane selected from the group consisting of dichloromethane, chloroform, carbon tetrachloride and 1,1,1-trichloroethane and a haloolefin, of the formula in which Y represents H or Cl, X represents Cl or F and R represents H, Cl, F or CH3 characterized in that the reaction is carried out in the substantial absence of nitrile and with a molar ratio between the haloalkane and the haloolefin of less than 2 and the reaction is carried out in the presence of a catalytic system comprising a catalyst selected from the group consisting of an amine, amide and a trialkylphosphine oxide.