Asymmetric assembly of pyrazole and 1,2,3-triazole with a methylene bridge: regioisomerism and energetic properties.

An asymmetric N-bridged strategy was employed to link two different energetic building blocks. The resulting compounds not only exhibit good crystal density and low sensitivity, but also demonstrate the key features of physiochemical properties and regioisomeric structures that enrich the horizon of regiochemistry of energetic compounds.