Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
2000-04-04
2000-12-05
Shippen, Michael L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568629, 568774, C07C 3700
Patent
active
061569399
ABSTRACT:
The invention relates to a process for the hydroxylation of aromatic hydrocarbons by direct oxidation with hydrogen peroxide. The process is carried out in the presence of a catalyst comprising:
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Seizo Tamagaki et al., "Hydroxylation of Benzene by Hydrogen Peroxide Catalyzed by an FE.sup.3+ --Catechol Catalyst Supported on Silica Gel", Chemistry Letters, The Chemical Society of Japan, No. 5, pp. 651-652, May 1982.
Kazuhiko Hotta et al., "Hydroxylation of Benzene with Hydrogen Peroxide by the Use of Hydrophobic Catechols and FE.sup.3+ Complexes as the Catalyst", Chemistry Letters, The Chemical Society of Japan, No. 6, pp. 789-790, Jun. 1981.
Derwent Abstracts, Accession No. 96-207693, Prodn. of Pyrocatechol and Hydroquinone--Comprises Reacting Phenol with AQ. Hydrogen Peroxide in Presence of Bivalent Iron Sulphate as Catalyst, RU2043331, Sep. 10, 1995.
Derwent Abstracts, Accession No. 95-281983, Prepn. of Prod. of Pyrocatechol and Hydroquinone for Use as Dye Intermediate--Includes Reacting Phenol @ with AQ. Hydrogen Peroxide with Di:Valent Iron Sulphate as Catalyst, RU2028287, Feb. 9, 1995.
Battistel Ezio
Bianchi Daniele
Bortolo Rossella
Tassinari Roberto
Vignola Rodolfo
Enichem S.p.A.
Shippen Michael L.
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