Process for producing ortho-nitro aromatic acids by oxidation of

Details Process for producing ortho-nitro aromatic acids by oxidation of Process for producing ortho-nitro aromatic acids by oxidation of

1995-11-03

1997-01-07

Shippen, Michael L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

562414, C07C 5116

Patent

active

055918905

ABSTRACT:
A process for preparing o-nitroaromatic acids by direct oxidation of the corresponding o-nitroalkylaromatic compounds, utilizing salts of certain catalytic metals in the presence of an oxygen-containing gas and an aliphatic aldehyde or ketone at elevated temperature and pressure, is provided. The process allows catalyst recovery and reuse.

REFERENCES:
patent: 2673217 (1954-03-01), Hull
patent: 4007223 (1977-02-01), Feld
patent: 4603220 (1986-07-01), Feld
patent: 4906771 (1990-03-01), Young
M. G. Scaros and M. L. Prunier, Catalysis of Organic Reactions, Marcel Dekker, Inc, 314, 1995.
Ryoichi Hasegawa and Yoshio Kamiya, Studies on the Liquid Phase Oxidation of Nitroalkylbenzenes Catalyzed by Transition Metal and Bromide Ions, Bulletin Chem. Soc. Jap., 51 (5), 1490-1494, 1978.

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