OXIDATION OF NN'-DIARYL-AND NN-ALKYLARYL-SUBSTITUTED THIOCARBAMIDES. PART I. THE SO-CALLED 2 :5- DIARYLIMIDO-3 :4-DIARYL-I :3 :4-THIODIAZOLES

Hydrogen peroxide oxidation of certain symmetrical diarylthiocarbamides in alcoholic medium has been found to afford the respective diarylcarbamides and not thiodiazoles, as reported earlier (this journal, 1928, 5, 66r). The unsymmetrical diaryl or alkylaryl compounds, however, yield sulphur containing products, probably thiodiazoles of yet undecided constitution.