“…The more general synthetic method to obtain various mono-, di-and tri-substituted alkyl-and aryl-triazines, besides the parent triazine 1, is by oxidation of N-aminopyrazoles 36 with lead(IV) acetate (LTA; Pb(C 2 H 3 O 2 ) 4 ), nickel peroxide or sodium perchlorate [27,48,64,66,94,95] (Scheme 20.4). The amino nitrogen is incorporated into the triazine ring as the central nitrogen N2, probably via insertion of the nitrene moiety to the NÀN bond of the pyrazole ring [72].…”