Method of preparing p-nitrobenzoic acid

Details Method of preparing p-nitrobenzoic acid Method of preparing p-nitrobenzoic acid

1974-12-23

1977-02-08

Gotts, Lewis

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 5133

Patent

active

040072231

ABSTRACT:
Process of preparing a not discolored p-nitrobenzoic acid by oxidation of p-nitrotoluene with oxygen, which comprises contacting the oxygen with the p-nitrotoluene in an acetic acid reaction medium and in the presence of a cobalt-containing and bromine-containing catalyst at a temperature of 80.degree. to 150.degree. C. The cobalt is present as a cobalt salt in the amount of 0.01 to 0.1 moles per mole of p-nitrotoluene, and the amount of acetic acid is 3 to 15 moles per mole p-nitrotoluene.

REFERENCES:
patent: 2833816 (1958-05-01), Saffer et al.
patent: 3665030 (1972-05-01), Radzizky et al.
Fieser et al., "Reagents for Org. Syn.", Wiley & Sons Inc., N.Y., 1967, p. 154.

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