A Method for a Diamino Tricyclic Fused-Ring Energetic Material with Enhanced Stability

Although dinitroimino compounds I-V exhibit excellent detonation performance, their poor stability (Td < 200 °C) limits their applications. In this study, a novel tricyclic fused skeleton was obtained using a rare one-pot strategy involving a condensation, a cyclization, and an intramolecular cyclization. Dinitroimino derivative 5 demonstrates superior detonation performance (Dv = 9023 m s-1, and P = 33.9 GPa) and improved stability (Td = 235 °C) compared to those of reported dinitroimino compounds I-V and RDX (Td = 204 °C).