The Products of Thermolysis of N-(1-Pyridinio)-2-nitroanilides are not Triaziridines, but 1,2-Bisbenzenes

Article abstract of DOI:10.1002/hlca.19810640715

The products of the thermolysis of N-(1-pyridinio)-2-nitroanilides (1) had previously been interpreted as tris(2-nitrophenyl)-triaziridines (3).The present work shows them to be actually 1,2-bis<(Z)-(2'-nitrophenyl)-ONN-azoxy>benzenes (5).The revised structural assignment is based on the chemical and the spectroscopic (especially 1H-NMR.) properties of 5 and on the results of a X-ray structural analysis.