Unexpected production of 2,4,6-triphenyl-1,3,5-triazine in the electroreduction of 3,4-diphenyl-1,2,5-thiadiazole 1-oxide. Theoretical estimation of reactive sites for 1-oxide and 1, 1-dioxide 1,2,5-thiadiazoles - Aimone, Silvia L.; Mirifico, Maria V.; Caram, José A.; Mitnik, Daniel Glossman; Piro, Oscar E.; Castellano, Eduardo Ernesto; Vasini, Enrique J. (Tetrahedron Letters, 2000)