P-alkoxyphenyl fullerene and its preparation method and use

A technology for p-alkoxyphenyl and alkoxyphenyl, which is applied in the field of p-alkoxyphenyl fullerene and its preparation, can solve the problems of poor stability and adaptability of stabilizers, and achieve stable performance, The effect of improving overall performance and prolonging storage period

Active Publication Date: 2022-04-01
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 provide a kind of p-alkoxyphenyl fullerene and its preparation method

Method used

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  • P-alkoxyphenyl fullerene and its preparation method and use
  • P-alkoxyphenyl fullerene and its preparation method and use
  • P-alkoxyphenyl fullerene and its preparation method and use

Examples

Experimental program
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Effect test

Embodiment 1

[0026] The preparation method of p-methoxyphenyl fullerene (a):

[0027] 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, 6 mmol of methylphenyl ether and 1 mmol of anhydrous ferric chloride were added to the mixed solution, and the mixture was reacted at a constant temperature of 25°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, the excess solvent was removed by rotary evaporation to obtain a reddish-brown crude product. The crude product was dissolved in a small amount of dichloromethane, and the orange-red product was obtained by separation by silica gel column chromatography, and the eluent was dichloromethane / carbon disulfide (1...

Embodiment 2

[0029] The preparation method of p-methoxyphenyl fullerene (a):

[0030] At a room temperature of 25° C., 0.05 mmol of hexachlorofullerene was dissolved in 100 mL of dichloromethane, and the mixed solution was stirred and dissolved under nitrogen protection for 2 hours. After being completely dissolved, 6 mmol of methylphenyl ether and 1 mmol of anhydrous aluminum trichloride were added to the mixed solution, and the mixture was reacted at a constant temperature of 25°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, the excess solvent was removed by rotary evaporation to obtain a reddish-brown crude product. The crude product was dissolved in a small amount of dichloromethane, and the orange-red product was obtained by separation by silica gel column chromatography, and the eluent was dichloromethane / carbon dis...

Embodiment 3

[0032] The preparation method of p-ethoxyphenyl fullerene (b):

[0033] At a room temperature of 25° C., 0.05 mmol of hexachlorofullerene was dissolved in 100 mL of dichloromethane, and the mixed solution was stirred and dissolved under nitrogen protection for 2 hours. After the solution was completely dissolved, 6 mmol of ethyl phenyl ether and 1 mmol of anhydrous aluminum trichloride were added to the mixed solution, and the temperature of the water bath was raised to 50°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, the excess solvent was removed by rotary evaporation to obtain a reddish-brown crude product. The crude product was dissolved in a small amount of dichloromethane, and the orange-red product was obtained by separation by silica gel column chromatography, and the eluent was dichloromethane / carbo...

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Abstract

The invention discloses p-alkoxyphenyl fullerene represented by formula (I) and a preparation method thereof. Utilizing the optimized Friedel-Crafts alkylation reaction, using hexachlorofullerene and alkoxybenzene as raw materials, dichloromethane as solvent, and anhydrous aluminum chloride as catalyst, p-alkoxyphenyl-rich leene. The fullerene derivative can be used as a novel fullerene stabilizer in solid rocket propellants. Where: R=‑CH 3 ,-CH 2 CH 3 ,-CH(CH 3 ) 2 ,-CH 2 CH 2 CH 3 ,-C(CH 3 ) 3 ,-CH 2 CH 2 CH 2 CH 3 .

Description

technical field [0001] The invention belongs to the technical field of organic chemistry and relates to p-alkoxyphenyl fullerene and its preparation technology. The prepared p-alkoxyphenyl fullerene can be used as a stabilizer 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 modern rocket and missi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C41/30C07C43/21C06B23/00C06D5/00
CPCC07C41/30C07C43/21C07C2604/00
Inventor 金波彭汝芳赵杨张青春黄琪
Owner SOUTHWEAT UNIV OF SCI & TECH
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