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Fullerene phenolic ester derivative as well as preparation method and application thereof

A technology of fullerene phenol esters and derivatives, which is applied in the field of solid rocket propellants, fullerene phenol ester derivatives and their preparation, can solve the problems of poor stability and adaptability, and achieve stable performance and preparation The method is simple and convenient, and the effect of improving thermal stability

Active Publication Date: 2019-08-02
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the problems of poor stability and adaptability of existing solid rocket propellant stabilizers, and to provide a fullerene phenol ester derivative and a preparation method thereof

Method used

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  • Fullerene phenolic ester derivative as well as preparation method and application thereof
  • Fullerene phenolic ester derivative as well as preparation method and application thereof
  • Fullerene phenolic ester derivative as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation method of formic acid phenyl fullerene (a):

[0026] At a room temperature of 25° C., 0.05 mmol of hexachlorofullerene was dissolved in 20 mL of nitrobenzene, and the mixed solution was stirred and dissolved under nitrogen protection for 2 hours. After being completely dissolved, 15 mmol of phenyl formate and 4.55 mmol of titanium tetrachloride were added to the mixed solution, and the temperature of the oil bath was raised to 100°C. The reaction was stirred under nitrogen protection until thin layer chromatography showed that the reactant was completely consumed, and the reaction solution changed from orange to dark brown. After the reaction, excess solvent was removed by distillation under reduced pressure to obtain a reddish-brown crude product. The crude product was dissolved in a small amount of carbon disulfide, and the orange-red product was obtained by separation by silica gel column chromatography, and the eluent was ethyl acetate / carbon disulf...

Embodiment 2

[0028] The preparation method of formic acid phenyl fullerene (a):

[0029] At a room temperature of 25° C., 0.05 mmol of hexachlorofullerene was dissolved in 20 mL of nitrobenzene, and the mixed solution was stirred and dissolved under nitrogen protection for 2 hours. After completely dissolving, 15 mmol of phenyl formate and 6 mmol of anhydrous aluminum trichloride were added to the mixed solution, and the temperature of the oil bath was raised to 100°C. The reaction was stirred under nitrogen protection until thin layer chromatography showed that the reactant was completely consumed, and the reaction solution changed from orange to dark brown. After the reaction, excess solvent was removed by distillation under reduced pressure to obtain a reddish-brown crude product. The crude product was dissolved in a small amount of carbon disulfide, and the orange-red product was obtained by separation by silica gel column chromatography, and the eluent was ethyl acetate / carbon disulf...

Embodiment 3

[0031] The preparation method of phenyl acetate fullerene (b):

[0032] At a room temperature of 25° C., 0.05 mmol of hexachlorofullerene was dissolved in 20 mL of nitrobenzene, and the mixed solution was stirred and dissolved under nitrogen protection for 2 hours. After being completely dissolved, 15 mmol of phenyl acetate and 4.55 mmol of titanium tetrachloride were added to the mixed solution, and the temperature of the oil bath was raised to 100°C. The reaction was stirred under nitrogen protection until thin layer chromatography showed that the reactant was completely consumed, and the reaction solution changed from orange to dark brown. After the reaction, excess solvent was removed by distillation under reduced pressure to obtain a reddish-brown crude product. The crude product was dissolved in a small amount of carbon disulfide, and the orange-red product was obtained by separation by silica gel column chromatography, and the eluent was ethyl acetate / carbon disulfide ...

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PUM

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Abstract

The invention discloses a fullerene phenolic ester derivative shown in a formula (I) and a preparation method thereof. The fullerene phenolic ester derivative is synthesized by utilizing optimized Friedel-Crafts alkylation reaction and by taking hexachlorofullerene and phenolic ester as raw materials. The fullerene derivative can serve as a novel fullerene stabilizing agent applied to a solid rocket propellant. In the formula (shown in the description), R=-H, -CH3, -CH3CH2, -CH(CH3)2, -CH2CH2CH3, -CH2CH2CH2CH3.

Description

technical field [0001] The invention belongs to the technical field of organic chemistry, and relates to fullerene phenol ester derivatives and a preparation technology thereof. The prepared fullerene phenol ester derivatives are used as stabilizers in solid rocket propellants. [0002] technical background [0003] With the development of my country's aerospace industry and the continuous improvement of national defense science and technology requirements for high-end weapons, high-performance propellants have become a hot topic of research. Stabilizers are one of the indispensable components to maintain the thermal stability of solid propellants, and are very critical functional materials in solid propellant formulations. Finding a stabilizer with excellent performance has become the main direction to improve the performance of the propellant under the condition that the main components of the existing propellant remain unchanged. [0004] As the dominant energy source in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C67/293C07C69/04C07C69/21C07C69/33C06B23/00C06D5/00
CPCC07C69/04C07C69/21C07C69/33C06B23/006C06D5/00C07C2604/00Y02E10/549
Inventor 金波彭汝芳赵杨张青春黄琪
Owner SOUTHWEAT UNIV OF SCI & TECH
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