Reductive dehalogenation of halogen compounds

Abstract From the Canadian patent

Disclosed is a process for reductively dehalogenating aliphatic, cycloaliphatic aromatic or, araliphatic halogen compounds in which no less than one halogen atom is bounded to a carbon atom. This process which can be carried out easily in industry even on a, large scale, and is free of the disadvantages of the prior art processes, comprises reacting the halogen compounds with hydrocarbons in the presence of carbon in the liquid phase at from 100 to 450°C with formation of hydrogen halides. This process is particularly useful for the selective reduction of aromatic or hetaromatic acyl halides in, particular bromides or chlorides, to aldehydes.