Assembly of three oxadiazole isomers toward versatile energetics

Abstract

Three stable oxadiazole isomers, viz. 1,2,5-oxadiazole, 1,2,4-oxadiazole and 1,3,4-oxadiazole, were combined to obtain a new tricyclic skeleton, which was then controllably functionalized to generate versatile energetic materials: nitro/nitroamino 6, azide/nitroamino 8, nitroamino/nitroamino 10, and ionic salts 11 and 12. All these oxadiazoles were structurally confirmed and exhibit good energetic performance. In addition, a comparative study with existing isomers was carried out.