RING-OPENING REACTION OF THE 1,3-DIAZETIDINE RING: HYDRAZINOLYSIS OF 2,4-BIS(HETEROARYLIMINO)-1,3-DIAZETIDINE DERIVATIVES

Article abstract of DOI:10.1016/S0040-4020(01)90014-6

Reaction between 1,3-diaryl-2,4-bis(heteroarylimino)-1,3-diazetidines and anhydrous hydrazine yield 4-aryl-3-heteroarylimino-5-arylamino-2H-2,3-dihydro-1,2,4-triazoles.When methylhydrazine is used instead of hydrazine 1-methyl and, in some cases, 2-methyl derivatives were isolated.A tentative mechanism is proposed for the different compounds, which were fully characterized by mass spectrometry and 1H and 13C n.m.r. spectroscopy.