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A heat-resistant compound adopting a benzene ring as a parent and a preparation method and application thereof

A compound and precursor technology, applied in the field of heat-resistant compounds and their preparation, can solve problems such as insufficient stability of explosives and easy evaporation, and achieve the effects of simple and easy preparation method, easy recrystallization, and simple equipment

Active Publication Date: 2018-11-16
XINYANG NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the influence of aerodynamic effects and the vacuum environment of space and the moon during the flight of the spacecraft, the spacecraft needs to be heated to sterilize before entering the space and returning to the earth, but conventional explosives (such as Hesogen) It is not stable enough under high temperature or low pressure for a long time, and even easy to evaporate under aerodynamic effect, which cannot meet the above requirements

Method used

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  • A heat-resistant compound adopting a benzene ring as a parent and a preparation method and application thereof
  • A heat-resistant compound adopting a benzene ring as a parent and a preparation method and application thereof
  • A heat-resistant compound adopting a benzene ring as a parent and a preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0025] The preparation of a heat-resistant compound 2-fluoro-1,3-diamino-4,6-dinitrobenzene with a benzene ring as a parent comprises the following steps:

[0026] Accurately weigh 5.0 g of 2,3,4-trifluoro-1,5-dinitrobenzene, put it into a 100 ml eggplant-shaped bottle, add 50 ml of 40% concentrated ammonia water under magnetic stirring at room temperature, and , continue to stir the reaction at room temperature until complete (TLC detection, the time is about 21 hours), filter and wash with water to obtain a bright yellow solid (2-fluoro-1,3-diamino-4,6-dinitrobenzene), Its yield is 93.01%; Its proton nuclear magnetic resonance spectrum figure is 1 H NMR (600MHz, DMSO-d 6 ,TMS,ppm), δ=8.63(s,1H),7.55(s,4H); 13 CNMR (125MHz, DMSO-d 6 , TMS, ppm), δ=138.30, 136.10, 123.23, 122.39; Elemental Analysis for C 6 h 5 FN 4 o 4 (216.13):calcd.C,33.75;H,2.16;F:8.65;N,25.89;found:C,33.34;H,2.33;F:8.79;N,25.92;O,29.61.

Embodiment 2

[0028] The preparation of a heat-resistant compound 2-fluoro-1,3-diamino-4,6-dinitrobenzene with a benzene ring as a parent comprises the following steps:

[0029] Accurately weigh 5.0 g of 2,3,4-trifluoro-1,5-dinitrobenzene, put it into a 100 ml eggplant-shaped bottle, add 10 ml of 40% concentrated ammonia water under magnetic stirring at room temperature, and , continue to stir the reaction at room temperature until complete (TLC detection, the time is about 47 hours), filter and wash with water to obtain a bright yellow solid (2-fluoro-1,3-diamino-4,6-dinitrobenzene), The yield thereof was 90.65%.

Embodiment 3

[0031] The preparation of a heat-resistant compound 2-fluoro-1,3-diamino-4,6-dinitrobenzene with a benzene ring as a parent comprises the following steps:

[0032] Accurately weigh 5.0 g of 2,3,4-trifluoro-1,5-dinitrobenzene, and add it to a 100 ml eggplant-shaped bottle containing 50 ml of 40% concentrated ammonia water under magnetic stirring at room temperature. , continue to stir the reaction at room temperature until complete (TLC detection, the time is about 21 hours), filter and wash with water to obtain a bright yellow solid (2-fluoro-1,3-diamino-4,6-dinitrobenzene), The yield is 92.76%.

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Abstract

The invention belongs to the technical field of compound preparation and discloses a heat-resistant compound adopting a benzene ring as a parent and a preparation method and application thereof. The compound is 2-fluoro-1,3-diamono-4,6-dinitrobenzene. The method includes mixing and stirring an alcohol solution of ammonia water or ammonia with solid that is 2,3,4-trifluoro-1,5-dinitrobenzene at room temperature and under magnetic stirring; and after the reaction is finished, performing filtration, washing and drying to obtain the heat-resistant compound that is 2-fluoro-1,3-diamono-4,6-dinitrobenzene shown as a formula I. Compared with TATB, the 2-fluoro-1,3-diamono-4,6-dinitrobenzene has better detonation performance and has sensitivity similar to that of TATB. The synthetic method of thecompound is simple, convenient, high in yield and prone to industrial production, and the compound is insoluble to water and is environmentally friendly, and therefore, the compound has higher potential industrialization value and is of great significance for study of novel heat-resistant explosives.

Description

technical field [0001] The invention belongs to the technical field of compound preparation, and in particular relates to a heat-resistant compound with a benzene ring as a matrix, a preparation method and application thereof. Background technique [0002] Precise strike, high-efficiency damage capability and high survivability are the goals pursued by modern weapons. To achieve these goals, high-energy-density materials (HEDM) as weapon energy carriers must meet high energy, high density, low vulnerability, and environmental adaptability. and high thermal stability requirements. In recent years, with the development of the aerospace industry and the exploitation of underground resources such as oil and gas, there is an increasingly urgent need for a class of explosives that can withstand high pressure (or low pressure) and high temperature, referred to as heat-resistant explosives. Heat-resistant explosives refer to a class of explosives that can maintain appropriate mecha...

Claims

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Application Information

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IPC IPC(8): C07C211/52C07C209/10C06B25/04
CPCC06B25/04C07C209/10C07C211/52
Inventor 张行程胡文祥姚磊
Owner XINYANG NORMAL UNIVERSITY
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