Reactions catalyzed by haloporphyrins

Details Reactions catalyzed by haloporphyrins Reactions catalyzed by haloporphyrins

C - Chemistry, Metallurgy

07

C

C07C 31/02 (2006.01) B01J 31/18 (2006.01) C07C 27/12 (2006.01) C07C 29/132 (2006.01) C07C 29/50 (2006.01) C07C 33/20 (2006.01) C07C 35/02 (2006.01) C07C 45/28 (2006.01) C07C 45/33 (2006.01) C07C 45/53 (2006.01) C07C 49/08 (2006.01) C07C 407/00 (2006.01) C07C 409/16 (2006.01) C07D 487/22 (2006.01)

Patent

CA 2157238

The invention provides novel methods for the oxidation of hydrocarbons with oxygen-containing gas to form hydroxy-group containing compounds and for the decomposition of hydroperoxides to form hydroxygroup containing compounds. The catalysts used in the methods of the invention comprise transition metal complexes of a porphyrin ring having 1 to 12 halogen substituents on the porphyrin ring, at least one of said halogens being in a meso position and/or the catalyst containing no aryl group in a meso position. The catalyst compositions are prepared by halogenating a transition metal complex of a porphyrin. In one embodiment, a complex of a porphyrin with a metal whose porphyrin complexes are not active for oxidation of alkanes is halogenated, thereby to obtain a haloporphyrin complex of that metal, the metal is removed from the haloporphyrin complex to obtain the free base form of the haloporphyrin, and a metal such as iron whose porphyrin complexes are active for oxidation of alkanes and for the decomposition of alkyl hydroperoxides is complexed with the free base to obtain an active catalyst for oxidation of alkanes and decomposition of alkyl hydroperoxides.

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