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Method for detecting RDX explosive by using square amide derivative

A technology of squaramide derivatives and explosives, which is applied in the field of chemical sensing materials, can solve the problems of few literatures on the detection of RDX explosives, and achieve the effects of high sensitivity, mild reaction conditions and high product yield

Inactive Publication Date: 2014-11-19
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result of the literature survey, it was found that most of the literature on the detection of explosives was aimed at TNT explosives, and there were very few literatures on the detection of RDX explosives

Method used

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  • Method for detecting RDX explosive by using square amide derivative
  • Method for detecting RDX explosive by using square amide derivative
  • Method for detecting RDX explosive by using square amide derivative

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1, the preparation of square amide derivatives:

[0027] Such as figure 1 In the synthetic route shown, 50 μL of diethyl squarylate and 60 μL of aniline were dissolved in 30 mL of a mixed solution of toluene / DMF=19:1, and 13.8 mg of zinc trifluoromethanesulfonate catalyst was added, and the temperature was changed from room temperature to Rising to 100°C, stirring at a medium speed for 8 hours, the reaction solution was centrifuged at a high speed, and the obtained precipitate was washed with anhydrous methanol. The yield was 99%. The H NMR spectrum of the product was as follows: figure 2 shown.

Embodiment 2

[0028] Embodiment 2, the preparation of square amide derivatives:

[0029] Dissolve 120 μL of diethyl squarylate and 155 μL of aniline in 30 mL of a mixed solution of toluene / DMF=19:1, add 160 mg of zinc p-toluenesulfonate catalyst, raise the temperature from room temperature to 100 ° C, and stir at a medium speed After 10 hours, the reaction solution was centrifuged at high speed, and the obtained precipitate was washed with anhydrous methanol, and the yield was 96%.

Embodiment 3

[0030] Embodiment 3, the preparation of square amide derivatives:

[0031] Dissolve 40 mL of diethyl squarylate and 51 mL of aniline in 100 mL of a mixed solution of toluene / N,N-dimethylformamide = 19:1, raise the temperature from room temperature to 120°C, and stir at medium speed for 9 hours , the reaction solution was centrifuged at high speed, and the resulting precipitate was washed with anhydrous methanol, with a yield of 94%.

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Abstract

The invention relates to a method for detecting an RDX explosive by using a square amide derivative, which belongs to the field of chemical sensing materials. According to the method disclosed by the invention, by adopting a square amido substituted chemical sensor with optical activity, after an interaction with RDX molecules through intermolecular hydrogen bonding, the absorption strength of an ultraviolet absorption spectrum of the sensor near the waveband of 322nm is remarkably improved. The square amido substituted chemical sensor used by the method is simple in synthesis method, wide in detection range, and high in detection sensitivity, is suitable for rapid detection of RDX, and can be widely applied to the fields of national defence industries and explosive detection.

Description

technical field [0001] The invention relates to a method for detecting RDX explosives by using squaramide derivatives, belonging to the field of chemical sensing materials. Background technique [0002] In today's society, peaceful development is the common theme of all countries in the world. However, in recent years, terrorist activities have been rampant. Using explosives to carry out terrorist attacks is a common method of terrorists, which seriously threatens national security. The research on explosive sensors is not only important for battlefields The detection of a variety of explosive weapons is of great significance, and it also has far-reaching significance in the protection of national people's security in a peaceful society, especially in anti-terrorism. [0003] RDX is one of the high-energy and low-sensitivity single-substance explosives widely used at present. Its detonation velocity reaches about 8700m / s and is easy to detonate. It is one of the main charges...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/33G01N21/78
Inventor 李丽洁束庆海金韶华李鑫王雨乔
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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