Conversion of 1,1,1-trichloroperhaloalkanes into...

Details Conversion of 1,1,1-trichloroperhaloalkanes into... Conversion of 1,1,1-trichloroperhaloalkanes into...

C - Chemistry, Metallurgy

07

C

260/539.7

C07C 53/46 (2006.01) C07C 17/278 (2006.01) C07C 51/58 (2006.01)

Patent

CA 1169877

ABSTRACT CONVERSION OF 1,1,1-TRICHLOROPERHALOALKANES INTO PERHALOALKANOYL CHLORINES A process for the preparation of perhaloalka- noyl chloride is disclosed which comprises reacting 1,1,1-trichloroperfluoroalkane, with a sulfur trioxide- containing compound selected from the group consisting of oleum sulfur trioxide and stabilized sulfur trioxide in the presence of catalytic amounts of a halogen cata- lyst selected from the group consisting of iodine, bromine, iodine monobromide and iodine monochloride and bromine monochloride wherein the 1,1,1-trichloroperhalo- alkane is a straight or branched chain acyclic organic compound having 2 to 8 carbon atoms and having at least one trihalomethyl group wherein at least one halo atom is fluorine and having the remaining carbon atoms sub- stituted by F, Cl, Br or I atoms.

403670

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