The present study describes a benzo[d]oxazole-functionalized conventional synthesis of novel [1,2,4]triazolo[3,4-b][1,3,4]thiadiazine and [1,2,4]triazolo[3,4-b][1,3,4]thiadiazoles are formed by the condensation of 5 with bromo-substituted acetophenones and isothiocyanates. The structural elucidation of the newly synthesized compounds was accomplished using various spectroscopic techniques, for example, Fourier transform infrared, nuclear magnetic resonance (