On triazoles. V. Synthesis of 1- and 2-R1-3-R2,R3-amino-5-amino-1,2,4-triazoles

The correct isomeric and tautomeric structure of different 1- and 2-R¹-3-R²,R³-amino-5-amino-1,2,4-triazole derivatives prepared from the corresponding N-cyano-N'-R²,R³-S-methyl-isothioureas and the corresponding hydrazines was proved with the help of their ir, uv, ¹H-nmr and ¹³C-nmr spectra as well as the uv spectra of the Schiff bases of an isomeric pair.