70902-72-6Relevant articles and documents
Process for the preparation of p-nitroaniline compounds by the alkaline hydrolysis of mixed anilides
-
, (2008/06/13)
Process for the preparation of certain substituted p-nitroaniline compounds essentially free of the corresponding o-nitroaniline compounds. The process comprises subjecting an alkanol solution of the anilides of such compounds to alkaline hydrolysis conditions, thereby effecting hydrolysis and precipitation of the p-nitroaniline compound essentially free of the undesired o-isomer. The compounds are intermediates useful in the preparation of azo pigments.