A kind of trinitromethylazole energetic compound and preparation method thereof

Abstract

The invention disclsoes a novel trinitromethylazoles energetic compound and a preparation method thereof. The trinitromethylazoles energetic compound is trinitromethyl-1,2,4-triazole amphoteric ion diazonium salt; the preparation method of the trinitromethylazoles energetic compound comprises the following steps: adding 5-amino-1,2,4-triazole-3-carboxylic acid and bi(5-nitramine-1,2,4-triazole)ethane hydrochloride into fuming nitric acid according to a certain ratio under a low-temperature bath at -15 DEG C, and sufficiently dissolving; after sufficiently dissolving, dropwise adding concentrated sulfuric acid at low temperature; after dropwise adding and reacting for a period of time, raising to normal temperature and continually reacting for one night; pouring a reacting solution into crushed ice and quenching; filtering, and extracting filtrate through dichloromethane; after drying an organic phase through anhydrous magnesium sulfate, spinning and drying at room temperature to obtain the trinitromethyl-1,2,4-triazole amphoteric ion diazonium salt. The trinitromethyl-1,2,4-triazole amphoteric ion diazonium salt prepared by the method is a high-energy-density energetic material with a good application prospect; the preparation method provided by the invention is easy to control and has moderate reaction conditions, and a product is easy to separate.

Description

technical field [0001] The invention relates to the field of organic chemistry, in particular to a trinitromethylazole energetic compound and a preparation method thereof. Background technique [0002] The further introduction of high-energy detonating groups into perazole compounds is one of the hotspots and difficulties in the organic synthesis of energetic materials. [0003] The introduction of trinitroethyl groups on amino groups through the Mannich reaction is a common modification strategy for introducing highly explosive groups into energetic materials, but the introduction of more alkane carbon chains leads to low packing density and lower energy levels of the compounds. Make it the weakness of trinitroethyl energetic compounds. The trinitromethyl group reduces the introduction of carbon chains, making the structure of the modified carrier molecule more compact, which helps to increase the crystal packing density, and thus has a tendency to gradually replace the tr...

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Problems solved by technology

[0004] V.Thottempudi, (V.Thottempudi et al.J.Am.Chem.Soc., 2011,133,6464-6471) discloses a preparation method of a class of trinitromethylazole energetic compounds from 5- Starting from nitro-1,2,4-triazole-3-carboxylic acid as a substrate, an energetic compound with energy and density comparable to Octogen (HMX) was synthesized; but they were trying to use 5-amino- 1,2,4-triazole-3-carboxylic acid was esterified and then nitrated, but only a mixture was obtained, and the product was not isolated

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