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US 4,307,249 AGranted
Process for the selective preparation of p-aminophenol from nitrobenzene
AssigneeMallinckrodt Inc.
InventorEdward L. Derrenbacker
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Abstract
An improved process for preparing p-aminophenol by the catalytic hydrogenation of nitrobenzene in an aqueous acidic reaction medium containing a dimethylalkylamine oxide whereby the hydrogenation rate is increased and the selectivity of the reaction for p-aminophenol is improved.
Claims10
A method for preparing p-aminophenol, by the catalytic hydrogenation of nitrobenzene in an acidic aqueous reaction medium containing dimethylalkylamine oxide wherein said alkyl group contains from 8 to 20 carbon atoms.
Dependencies are inferred from the claim text.