Efficient Synthesis of a Superior Heat-Resistant Energetic Material Based on Fused Pyrazolotriazine Ring

Fused-ring energetic materials are considered to be promising energetic materials. However, their practical applications are usually hindered due to the tedious synthetic routes. In this work, 4-amino-3,8-dinitropyrazolo[5,1-c][1,2,4]triazin-7-ol (4) was easily prepared within three straightforward steps starting from commercially available ethyl cyanoglyoxylate 2-oxime (1). Compound 4 is a promising heat-resistant explosive, with remarkable...