Synthesis and Characterization of a Novel Energetic Compound 1-Methyl-35-dinitropyrazole-4-nitrate

doi:10.3969/j.issn.1000-1093.2015.10.026

Abstract

Abstract: In order to seek high performance energetic compounds, a novel energetic material, 1-methyl-3,5-dinitropyrazole-4-nitrate, is synthesized using 4-chloropyrazole as raw material via nitration, nucleophilic substitution, and methylation reaction . Its structure is characterized by FTIR, NMR and elemental analysis. The effect of reaction time and dosage of iodomethane on methylation reaction is investigated, and the better synthesis condition is obtained. The reaction temperature is 40 ℃, the reaction time is 10 h, and the dosage of iodomethane is twice of that of DNPN with a yield of 55.2%. Its detonation properties are calculated and compared with those of other commonly-used energetic compounds. The results show that the detonation properties of 1-methyl-3,5-dinitropyrazole-4-nitrate are slightly lower than those of TNAZ and better than those of TNT. The impact sensitivity of 1-methyl-3,5-dinitropyrazole-4-nitrate is higher than that of TNAZ and similar to that of RDX.

Key words: ordnance science and technology, 1-methyl-3,5-dinitropyrazole-4-nitrate, energetic compound, synthesis, characterization

CLC Number:

TQ226

FENG Xiao-qin, CUI Jian-lan, CAO Duan-lin. Synthesis and Characterization of a Novel Energetic Compound 1-Methyl-35-dinitropyrazole-4-nitrate[J]. Acta Armamentarii, 2015, 36(10): 2012-2016.

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