Efficient Methodology for the Synthesis of 3-Amino-1,2,4-triazoles

A general and efficient method for the preparation of 3-amino-1,2,4-triazoles has been developed. The desired 3-amino-1,2,4-triazoles (1) were prepared in good overall yield via two convergent routes. The key intermediate within both routes is substituted hydrazinecarboximidamide derivative 2.