- One Step Closer to an Ideal Insensitive Energetic Molecule: 3,5-Diamino-6-hydroxy-2-oxide-4-nitropyrimidone and its Derivatives
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Reaching the goal of developing an insensitive high-energy molecule (IHEM) is a major challenge. In this study, 3,5-diamino-6-hydroxy-2-oxide-4-nitropyrimidone (IHEM-1) was synthesized in one step from 2,4,6-triamino-5-nitropyrimidine-1,3-dioxide hydrate (ICM-102 hydrate). The density of compound IHEM-1 is 1.95 g cm-3 with a decomposition temperature of 271 °C. Its detonation velocity and pressure are 8660 m s-1 and 33.64 GPa, respectively, which are far superior to the detonation performance of 1,3,5-triamino-2,4,6-trinitrobenzene (TATB), while its sensitivity is identical with that of TATB. In addition, four derivatives (1a, chloride; 1b, nitrate; 1c, perchlorate; and 1d, dinitramide) were prepared on the basis of the weak base site (N-O group) and show excellent energetic properties. By combining a series of advantages, including simple preparation, high yield, high density, very low solubility in aqueous solution, high thermostability, insensitivity, and excellent detonation performance, IHEM-1 approaches an ideal insensitive high-energy molecule. Compounds 1b-1d are also competitive as new high-energy-density materials.
- Bo, Yiyang,Feng, Yongan,Shreeve, Jean'Ne M.,Staples, Richard J.,Zhang, Jiaheng,Zhang, Jichuan
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p. 12665 - 12674
(2021/08/31)
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- Preparation method of energetic compound 2,4,6-triamino-5-nitropyrimidine-1,3-dioxide
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The invention discloses a preparation method of an energetic compound 2,4,6-triamino-5-nitropyrimidine-1,3-dioxide. The preparation method comprises the following steps: with 2,4,6-triaminopyrimidineand a substituent thereof as reaction raw materials, performing a nitration reaction; performing an oxidation reaction; performing an acid-alkali neutralization reaction to obtain the needed product,namely the 2,4,6-triamino-5-nitropyrimidine-1,3-dioxide. The preparation method has the advantages of short synthesis steps, low cost of used raw materials and used solvents, simple post treatment, small damage to people, equipment and the environment and the like; the compound synthesized by the preparation method provided by the invention has the characteristics of high density, high energy, insensitiveness to mechanical stimulation and the like, and has a relatively good market prospect in the field of application of energetic materials.
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Paragraph 0013-0051
(2018/06/15)
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