Serve, D. published the artcileElectrochemical properties of diphenylamines and their oxidation products in organic media. IV. The p-monosubstituted diphenylamines and the mechanism of coupling product formation for different diphenylamines, Application In Synthesis of 1821-27-8, the publication is Electrochimica Acta (1976), 21(12), 1171-81, database is CAplus.
The anodic oxidation of 9 paramonosubstituted diphenylamines, e.g. (RC6H4)2NH, R = NH2, OMe, Br, in MeCN was studied by rotating disk electrode voltammetry, cyclic voltammetry, and controlled-potential electrolysis with simultaneous recording of ESR and visible spectra. Depending on the acidity/basicity of the medium, the primary cation radical gives one or two of the coupling products, N,N’-diarylbenzidine, 5,10-diaryl-5,10-dihydrophenazine, N,N,N’-triaryl-p-phenylenediamine, or tetraarylhydrazine; the last 2 are observed only in basic media. N,N’-diarylbenzidine results from Cp-Cp coupling of two R2NH?+ (R = aryl) radicals, whereas tetraarylhydrazine comes from the dimerization of two R2N? in basic media. Dihydrophenazine and phenylenediamine result from Cp-N coupling between R2NH and the corresponding R2N+ (R = aryl). Selection rules for the formation of dihydrophenazines are presented.
Electrochimica Acta 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 C15H10O2, Application In Synthesis of 1821-27-8.
Referemce:
https://courses.lumenlearning.com/boundless-chemistry/chapter/catalysis/,
Catalysis – Wikipedia