Reductive dehalogenation of halogen compounds

C - Chemistry – Metallurgy – 07 – C

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260/705, 260/693

C07C 1/30 (2006.01) C07C 1/26 (2006.01) C07C 11/02 (2006.01) C07C 15/04 (2006.01) C07C 17/00 (2006.01) C07C 17/23 (2006.01) C07C 45/41 (2006.01) C07D 213/48 (2006.01) C07D 307/88 (2006.01) A62D 3/00 (2006.01)

Patent

CA 1279331

ABSTRACT OF THE DISCLOSURE: 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.

503633

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