Oligothiophene derivative, its preparation method and application

A technology of oligothiophene and derivatives, applied in chemical instruments and methods, color-changing fluorescent materials, organic chemistry, etc., can solve problems such as difficult encapsulation, and achieve the effect of overcoming difficult encapsulation

Inactive Publication Date: 2003-03-05
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, organic films must be electrochromic in a liquid electrolyte, and it is difficult to encapsulate

Method used

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  • Oligothiophene derivative, its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] preparation

[0020] The first step is at -78℃, N 2 Under protection, the THF solution of DOc3T was added into the THF solution of LDA with a syringe, at this time, the solution turned red, and the reaction was stirred for 1 hour;

[0021] In the second step, dry ice (CO 2 ), at this time, the solution turns yellow, and at -78°C, N 2 Under protection, continue to react for 5 hours, then warm up to room temperature, continue to react for 3 hours;

[0022] In the third step, dilute hydrochloric acid was added to the reaction solution, solid matter appeared, and the reaction was continued for 8 hours, THF and water were removed by filtration, washed with water, and dried to obtain a yellow powdery product;

[0023] In the fourth step, the product is added to thionyl chloride (SOCl 2 ) in 1,2-dichloroethane solution until completely dissolved, reflux reaction for 5 hours, and remove the solvent;

[0024] The fifth step is to mix the product with stearylamine at 0°C und...

Embodiment 2

[0031] preparation

[0032] The first step is at -78℃, N 2 Under the protection of expansion, add the THF solution of DOc4T into the THF solution of LDA with a syringe. At this time, the solution turns red, and the reaction is stirred for 3 hours;

[0033] In the second step, dry ice (CO 2 ), at this time, the solution turns yellow, and at -78°C, N 2 Under protection, continue to react for 3 hours, then gradually warming up to room temperature, continue to react for 5 hours;

[0034] The third step is to add dilute hydrochloric acid to the reaction solution, solid matter appears, continue to react for 5 hours, remove THF and water by filtration, wash with water several times, and dry to obtain a yellow powder product;

[0035] In the fourth step, the product is added to thionyl chloride (SOCl 2 ) in 1,2-dichloroethane solution until completely dissolved, reflux for 8 hours, and remove the solvent;

[0036] The fifth step is to mix the product with stearylamine at 0°C unde...

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Abstract

The present invention relates to a new type oligothiofuran derivative and its preparation method and application. Its preparation method includes the following steps: firstly, adding the THF solutionof DOCnT into THF solution of LDA; then adding dry ice and dilute hydrochloric acid into the reaction solution, filtering to remove THF and water; adding the obtained product into 1,2-dichloroethane solution of sulfoxide chloride, and removing solvent; making the produce and octadecyl amine produce reaction in dichloromethane solution, removing solvent to obtain crude product; then using silicon gel column to make separation so as to obtain pure product. Said derivative application lies in that said derivative and solvent are mixed, heated, dissolved, cooled so as to obtain gel, said gel can implement reversible metachrosis.

Description

(1) Technical field [0001] The invention relates to the technical field of organic polymer optoelectronic materials, in particular to novel oligothiophene derivatives and their preparation methods and applications. (2) Background technology [0002] High-purity oligothiophene with definite molecular weight, whose degree of polymerization and polymerization position can be controlled, is not only a "model" compound for studying polythiophene, but also a π-electron conjugated compound with excellent optical and electrical properties. Due to its excellent optical and electrical properties, it has been researched and developed as a functional organic material in recent years. So far, various oligothiophene derivatives have been designed and synthesized according to the research and development goal of oligothiophene as an optoelectronic information functional organic material. These oligothiophene derivatives are mainly used in the research of the following aspects: (1) By elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D409/14C09K9/02
Inventor 刘平童真邓文基
Owner SOUTH CHINA UNIV OF TECH
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