Abstract 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 mono-substituted hydrazines the steric press in the intermediate 6 caused besides formation of the expected derivative 3a ...
