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Etherification method of para-alkane azophenol and halogenated alkane

A technology for alkane-based azophenol and halogenated alkane, which is applied in the field of etherification of para-alkane-based azophenol, can solve the problems of low conversion rate and the like, and achieves the effects of mild reaction conditions and improved reaction efficiency

Pending Publication Date: 2022-03-22
NORTHEAST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention solves the problem of low conversion rate of the existing para-alkane-based azophenol etherification method, and further provides a method for the etherification of p-alkane-based azophenol and halogenated alkanes

Method used

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  • Etherification method of para-alkane azophenol and halogenated alkane
  • Etherification method of para-alkane azophenol and halogenated alkane
  • Etherification method of para-alkane azophenol and halogenated alkane

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specific Embodiment approach 1

[0024] DETAILED DESCRIPTION OF THE INVENTION An etherification method of alkane the alkane-based coupling phenol and a halogenated alkane is performed as follows:

[0025] First, alkalization treatment:

[0026] The counterkylene alkane group was dissolved in acetone, and then an alkalization agent was added, and the alkalization treatment was administered for 30 min to 60 min to obtain an alkalized mixture.

[0027] The molar ratio of the opposite alkane based azo phenol and an alkalizing agent is 1: (3 ~ 5);

[0028] Second, the etherification reaction:

[0029] The haloalkane is added to the alkalized mixture, and the reflux reaction is refluxed for 12 h to 48 h under a nitrogen atmosphere and stirring conditions at a nitrogen atmosphere and stirring conditions.

[0030] The molar ratio of the opposite alkane group and the halogenated alkane is 1: (1 ~ 3);

[0031] Third, the removal of the alkalization agent:

[0032] Dilute hydrochloric acid is added to the solution after the...

specific Embodiment approach 2

[0040] DETAILED DESCRIPTION OF THE INVENTION The present embodiment is different from that of the particular embodiment: the counter-alkane-based coupling phenol described in the step one is Rim 1 Other alkane groups of different carbon chain lengths are identical to those of the specific embodiments.

specific Embodiment approach 3

[0041] DETAILED DESCRIPTION OF THE INVENTION 3: The present embodiment is different from one or two of the specific embodiments that the alkalization agent described in steps is sodium hydroxide, potassium hydroxide, sodium carbonate or potassium carbonate. Others are the same as those of the specific embodiments.

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Abstract

The invention relates to an etherification method of para-alkane azophenol, in particular to an etherification method of para-alkane azophenol and halogenated alkane. The invention aims to solve the problem of low conversion rate of the existing p-alkane azophenol etherification method. The preparation method comprises the following steps: 1, alkalization treatment; 2, performing an etherification reaction; 3, removing the basifier; and 4, refining a crude product. The method provided by the invention is used for the etherification of the para-alkane azophenol and the halogenated alkane.

Description

Technical field [0001] The present invention relates to an etherification method of alkane alkane-based coupling. Background technique [0002] Azo phenyl group is a commonly used chromophore, which is convenient, rapid, reversible and efficient transcrotable potential, isomerized with absorption spectroscopy, dipole moment, refraction The rate, the moisture constant, and the like significant changes in optical, geometric, mechanical and chemical properties are different depending on the substituents at both ends of the azo phenyl group, and the azobenzene compound with azo phenyl group has corresponding characteristics. The azobenzene compound has become a construction block commonly used in the aerosol of the aerosol material due to its highly efficient photosensitive reaction. The most important characteristic of azobborne molecules is its ability to transform from a stable transformer after ultraviolet irradiation, and the reversible process can be triggered by visible or the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C245/08
CPCC07C245/08
Inventor 王海刚王丽敏邹楚文谢延军王永贵梁大鑫
Owner NORTHEAST FORESTRY UNIVERSITY
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