An Improved Synthesis of Bromotetrazole

Abstract A new efficient synthesis of 5‐bromotetrazole is presented. The free acid bromotetrazole was synthesized in a straightforward reaction analogous to the production of nitrotetrazole. Its sodium salt was readily produced via acid/base salt metathesis. Both products were characterized chemically and as energetic materials by 1 H and 13 C NMR, IR, High Resolution Mass Spectrometry, x‐ray crystallography, TGA, impact and friction tests.