Theoretical approach of the catalytic hydrochlorination of the 3-amino-2H-1,2,4-triazole

Abstract

This study was aimed to determine the sites of protonation of the molecule during the hydrochlorination of 3-amino-2H-1,2,4-triazole. The catalytic reaction was carried out on the site MoS₃H₂ + and on the site ZnCl₂. On both catalysts, the reaction led to a selective protonation of the molecule on the same atom of nitrogen of the cycle. But the reaction is endothermic and exothermic on the MoS₃H₃ + and ZnCl₂ catalytic sites, respectively. The calculation method used is Hartree-Fock (HF) in the lanl2dz basis set.