1, 4-dinitro oxymethyl-3, 6-dinitro parazole [4, 3-c] pyrazole compound

A technology of dinitropyrazole and dinitoxymethyl, applied in the field of energetic materials, can solve the problems of low energy, low compound density and the like

Inactive Publication Date: 2015-06-10
XIAN MODERN CHEM RES INST
View PDF3 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the compound is less dense and less energetic

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 1, 4-dinitro oxymethyl-3, 6-dinitro parazole [4, 3-c] pyrazole compound
  • 1, 4-dinitro oxymethyl-3, 6-dinitro parazole [4, 3-c] pyrazole compound
  • 1, 4-dinitro oxymethyl-3, 6-dinitro parazole [4, 3-c] pyrazole compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Synthesis of 1,4-Dihydroxymethyl-3,6-dinitropyrazole[4,3-c]pyrazole

[0021] Under stirring, 0.5g (2.53mmol) of 3,6-dinitropyrazole[4,3-c]pyrazole and 20.0mL of ethyl acetate were added to 15.0mL of 10% (mass) sulfuric acid aqueous solution. Control the temperature below 5℃, add 1.64g of 37%-40% (mass) formaldehyde aqueous solution dropwise, after the addition is complete, heat up to 20℃ and react for 20h, the reaction solution is extracted with ethyl acetate (25.0mL×3), anhydrous The extract was dried over magnesium sulfate, the ethyl acetate was distilled off under reduced pressure, and then dried to obtain 0.394 g of 1,4-dimethylol-3,6-dinitropyrazole [4,3-c] pyrazole. The yield was 60.4%.

[0022] Structure Identification:

[0023] Infrared spectrum: IR(KBr,cm -1 ),υ: 3537(-OH),2991,2925(-CH 2 ),1532,1393,1365(-NO 2 ),1298,1181,1081 (pyrazolopyrazole ring skeleton)

[0024] NMR spectroscopy: 1 HNMR(DMSO-d 6 ,500MHz),δ:5.832~5.845(d,4H,2CH 2 ), 7.387~7.417(t,2H,2OH); 1...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
densityaaaaaaaaaa
densityaaaaaaaaaa
Login to view more

Abstract

The invention discloses a 1, 4-dinitro oxymethyl-3, 6-dinitro parazole [4, 3-c] pyrazole compound. The structure formula is shown in formula (I). The compound is used in the explosive field.

Description

Technical field [0001] The invention relates to an energetic material, in particular to a 1,4-dinitrooxymethyl-3,6-dinitropyrazole [4,3-c] pyrazole compound. Background technique [0002] Multi-nitrogen energetic compounds are a class of energetic materials with unique properties, which have shown good application prospects in explosives, propellants and other fields. Pyrazolopyrazole-based multi-nitrogen energetic compounds have the characteristics of high density, large positive heat, and good thermal stability due to their compact structure, which has become one of the current research fields of energetic materials. The molecular structure of this type of compound contains a large number of CN, C=N, NN and N=N bonds, which release a large amount of nitrogen during decomposition, produce higher energy, and are not sensitive to friction, electric spark and other stimuli, so it can be used for high-energy low-sensitivity explosives , Gas generating agents, burning rate modifiers...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/04C06B25/34
Inventor 李亚南王伯周舒远杰张生勇蔚涛李祥志
Owner XIAN MODERN CHEM RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap