Mathias, A. published the artcileNitrogen-14 chemical shifts in substituted anilines, Formula: C12H9N3O4, the publication is Journal of the Chemical Society [Section] B: Physical Organic (1971), 397-9, database is CAplus.
Amino-14N chem. shifts of the anilines XC6H4NH2 (X = H; p-NO2, p-Ac, p-AcO, p-Br, p-Cl, p-Me, p-NH2, m-NO2, m-Ac, m-CF3, m-CO2Me, m-Me) and PhNHX (X = Me, Ph, m-MeOC6H4, p-MeOC6H4) and (p-O2NC6H4)2NH in Me2CO were determined by the heteronuclear double resonance method. The shifts correlated linearly with Hammett ¦Ò values of the ring substituents and related directly to electron ds. at the N nucleus. The 14N and 15N chem. shifts (Bramwell, M. R., Radall, E. W., 1969) of XC6H4NH2 (X = p-Me, p-Br, p-NO2, H) were identical.
Journal of the Chemical Society [Section] B: Physical Organic 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, Formula: C12H9N3O4.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia