Iida, Hirotada published the artcileStudies on the base-catalyzed reaction. VII. The reactions of p-nitroaniline with nitrobenzene derivatives in strongly basic solutions, Synthetic Route of 1821-27-8, the publication is Nippon Kagaku Kaishi (1976), 138-43, database is CAplus.
P-nitroaniline is ionized by Me3COK in (Me2N)3PO to form p-nitrophenylamide ion, which gives rise to nucleophilic substitution with PhNO2 derivatives on the substituent and on the hydrogen atom. The latter, occurring in the ortho or para position to the NO2 group, was recognized in almost every reaction under various conditions. In the former type of the reaction, the meta substituent was not affected, but the ortho or para substituents were favorably displaced. Under such conditions as giving both types of substitution, the former type of substitution was predominant if less Me3COK was used. The latter type of substitution was preferred when more Me3COK was used. The mechanisms of both types of substitution are suggested from the structure of the products and ESR.
Nippon Kagaku Kaishi published new progress about 1821-27-8. 1821-27-8 belongs to catalysis-chemistry, auxiliary class Nitro Compound,Amine,Benzene, name is Bis(4-nitrophenyl)amine, and the molecular formula is C12H9N3O4, Synthetic Route of 1821-27-8.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia