7-Hydroxybisfurazanoxyfurazanoxazepine compounds

A technology of furoxan and heterocycloheptene, applied in organic chemistry and other fields, can solve the problems of low compound density, low detonation velocity and pressure, poor oxygen balance, etc.

Active Publication Date: 2021-07-27
XIAN MODERN CHEM RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The compound has a density of 1.79 g / cm 3 , oxygen balance (Ω CO ) is -27.3%, the detonation velocity is 7718m / s, and the detonation pressure is 26Gpa, but the density of this compound is small, the oxygen balance is poor, the detonation velocity and detonation pressure are low

Method used

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Embodiment 1

[0017] Synthesis of 7-Hydroxybisfurazanofurazanoazepine

[0018] Under stirring, at a temperature of -15°C, (4.5g, 15mmol) 3,4-bis(4'-nitrofurazan-3'-yl)furazan was added to anhydrous 30mL acetonitrile, and slowly added dropwise (3.0g, 45mmol) The mass fraction was 50% hydroxylamine aqueous solution, reacted for 45min, and filtered to obtain 1.8g of 7-hydroxybisfurazanofurazanoxepepene, with a yield of 44.7% and a purity of 98.8%.

[0019] Structure Identification:

[0020] Infrared Spectrum: IR(KBr,cm -1 ), υ: 3282, 2087, 2454, 1658, 1637, 1608, 1588, 1555, 1528, 1482, 1440, 1395, 1355, 1173, 1054, 996, 969, 939, 851, 797, 736;

[0021] NMR spectrum: 1 H NMR (DMSO-d 6 ,500MHz), δ: 7.81; 13 C NMR (DMSO-d 6 ,125MHz), δ: 155.08, 154.68, 144.98, 135.72, 133.66, 105.96;

[0022] Elemental analysis: Molecular formula C 6 HN 7 o 5

[0023] Theoretical value: C 28.70, H 0.40, N 39.04

[0024] Measured values: C 28.31, H 0.45, N 38.64;

[0025] The above structural identi...

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Abstract

The invention discloses a 7-hydroxybisfurazanofurazanoazepine compound, the structural formula of which is shown in (I): the invention is mainly used in the field of high-energy explosives and propellants.

Description

technical field [0001] The invention relates to a 7-hydroxybisfurazanofurazanoazepine compound, which belongs to the field of energetic materials. Background technique [0002] Nitrogen-heteroaromatic energetic compounds are currently a hot topic in the research field of energetic materials, including pyrazoles, imidazoles, triazoles, tetrazoles, oxadiazoles, triazines, and tetrazines, among which furazan and furoxan contain energetic Compounds have become one of the hotspots in the research of energetic materials because of their advantages such as high energy density, good thermal stability, high oxygen balance, and large enthalpy of formation. Burning rate regulators, flame formulation inhibitors and pyrotechnics have become excellent matrix materials for building high energy density materials. Zhang Haihao et al. in "Synthesis, Crystal Structure and Thermal Behavior of 7-Aminotrifurazano[3,4-b:3′,4′-f:3″,4″-d]azepene”, Fire Acta Explosives Sinica, 2014, 37(4), 19-24 di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D498/22
CPCC07D498/22
Inventor 翟连杰毕福强王伯周吴敏杰李祥志周群
Owner XIAN MODERN CHEM RES INST
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