Oxidation of 2,4-dinitrobenzenesulphenamide in the presence of 2,3,4,5-tetraphenylpyrrole.

This is the authors' abstract. We don't add key points for this paper.

Oxidation of the title sulphenamide (1) with lead tetra-acetate in the presence of 2,3,4,5-tetraphenylpyrrole gave 2,4,5,6-tetraphenylpyrimidine (3) and 2-(2,4-dinitrophenylthioamino)-2,3,4,5-tetraphenyl-2H-pyrrole (7) as major products. The structure of (7) has been confirmed by X-ray crystallography.