2-Nitrodiphenylcarbodi-imide, generated by thermolysis of the heterocyclic precursors (1), (4), (5), and (6), and prepared by oxidation of 2-nitrodiphenyl-thiourea, is rapidly transformed in high yield into 2-phenylbenzotriazole (3) and carbon dioxide, in a new o-nitro group interaction.
P. G. Houghton, D. F. Pipe and C. W. Rees, J. Chem. Soc., Chem. Commun., 1979, 771 DOI: 10.1039/C39790000771
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