51108-33-9Relevant articles and documents
On Triazoles. XXVIII. Synthesis of Isomeric 1,2,4-Triazolylcarbothiohydrazides
Barkoczy, Jozsef,Reiter, Jozsef
, p. 1677 - 1683 (2007/10/02)
Different 3a, 3b, 9, 10 and 12 type 5-amino-1,2,4-triazolylcarbothiohydrazide isomers representing all possible isomeric types derived from 5-amino-1,2,4-triazoles were synthesised from the corresponding 5-amino-1,2,4-triazolyldithiocarbonates and hydrazines.HPLC measurements proved that in case of monosubstituted hydrazines the steric press in the intermediate 6 caused besides formation of the expected derivative 3a the formation of compounds 4 and 5, too, while the intermediate 7 yielded only 3b.Thermal rearangement of derivatives 3a in acetic acid led to isomers 9 and 10, respectively.
On Triazoles. V . Synthesis of 1- and 2-R1-3-R2,R3-Amino-5-amino-1,2,4-triazoles
Reiter, Jozsef,Pongo, Laszlo,Somorai, Tamas,Dvortsak, Peter
, p. 401 - 408 (2007/10/02)
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.