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1 Central European Journal of Energetic Materials

1 2016

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Synthesis and Property of 1,4-Diamino-3,6- dinitropyrazolo[4,3-c]pyrazole and Its Derivatives

Li Y.-N., Wang B.-Z., Shu Y.-J., Zhang S.-Y., Lian P.

Central European Journal of Energetic Materials

2016

Vol. 13, no. 2

321--331

A synthetic procedure has been developed for the synthesis of 1,4-diamino- 3,6-dinitropyrazolo[4,3-c]pyrazole (DADNP) via N-amination reaction. Its derivatives, 4,4’-(triaz-1-ene-1,3-diyl)bis(1-amine-3,6-dinitropyrazolo[4,3-c] pyrazole) (TBADNP) and 1,4-dinitramino-3,6-dinitropyrazolo[4,3-c]pyrazole (DNADNP), were first designed and synthesized by the diazotization and nitrification of amino group, and their structures were characterized by IR, 1H NMR, 13C NMR, elementary analysis and MS. The thermal properties of target compounds were studied by means of differential scanning calorimetry (DSC) and thermogravimetry (TG). The thermal decomposition peak temperatures of DADNP, TBADNP and DNADNP are 227, 236 and 288 °C, respectively. Results show that the derivatives of 1,4-diamino-3,6-dinitropyrazolo[4,3-c]pyrazole have better thermal stability.