Method for oxidizing hydrocarbons

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

Reexamination Certificate

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C568S346000, C568S351000, C568S385000, C568S560000, C568S569000, C568S768000, C562S408000, C562S418000, C562S497000, C562S521000, C548S301400, C548S485000

Reexamination Certificate

active

06852893

ABSTRACT:
The invention relates to a method for oxidizing substrates such as hydrocarbons, waxes or soot. The method involves the use of a compound of formula (I) in which: R1 and R2 represent H, an aliphatic or aromatic alkoxy radical, carboxyl radical, alkoxycarbonyl radical or hydrocarbon radical, each having 1 to 20 hydrocarbon atoms, SO3H, NH2, OH, F, Cl, Br, I and/or NO2, whereby R1 and R2 designate identical or different radicals or R1 and R2 can be linked to one another via a covalent bonding; Q1 and Q2 represent C, CH, N, CR5, each being the same or different; X and Z represent C, S, CH2, each being the same or different; Y represents O and OH; k=0, 1, 2; l=0, 1, 2; m=1 to 3, and; R5 represents one of the meanings of R1. Said compound is used as a catalyst in the presence of a radical initiator, whereby the molar ratio of the catalyst to the hydrocarbon is less than 10 mol %. Peroxy compounds or azo compounds can be used as the radical initiator. Preferred substrates are aliphatic or aromatic hydrocarbons.

REFERENCES:
patent: 5030739 (1991-07-01), Foricher et al.
patent: 0 885 868 (1998-12-01), None
J. March: “Free-radical substitution” Advanced Organic Chemistry. Reactions, Mechanisms, and Structure, p. 706.
Yasutaka Ishii et al.: “A novel catalysis of n-hydroxyphthalimide in the oxidation of organic substrates by molecular oxygen” Journal of Organic Chemistry, vol. 60, No. 13, pp. 3934-3935, Jun. 30, 1995.
Ishii: “A novel catalysl sof NHPI combined with Co(Acac)n (n=2 or 3) in the oxidation of organic substrates with molecular oxygen” J. Mol. Catal. A, vol. 117, pp. 123-137, 1997.
U.S. Appl. No. 10/239,185, filed Sep. 26, 2002, Kuehnle, et al.
U.S. Appl. No. 10/482,777, filed Jan. 2, 2004, Kuehnle, et al.

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