Английская Википедия:4-Nitrobenzoic acid

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Шаблон:Chembox

4-Nitrobenzoic acid is an organic compound with the formula C6H4(NO2)CO2H. It is a pale yellow solid. It is a precursor to 4-nitrobenzoyl chloride, the precursor to the anesthetic procaine and folic acid. It is also a precursor to 4-aminobenzoic acid.[1]

Production

4-Nitrobenzoic acid is prepared by oxidation of 4-nitrotoluene using oxygen or dichromate as oxidants.[2]

Preparation of 4-Nitrobenzoic acid

Alternatively, it has been prepared by nitration of polystyrene followed by oxidation of the alkyl substituent. This method proceeds with improved para/ortho selectivity owing to the steric protection of the ortho positions by the polymer backbone.

Safety

This compound has a rat Шаблон:LD50 of 1960 mg/kg.[3]

References