A kind of synthetic method of 2,3,5,6-tetrafluoro-7,7',8,8'-tetracyanodimethyl-p-benzoquinone

A technology of dimethyl pair and synthesis method, applied in the field of organic electroluminescent materials, can solve the problems of easy occurrence of danger, increased risk factor, volatile bromine, etc., achieves low requirements for use environment, and improves safety and stability Good results
CN106083652BActive Publication Date: 2017-11-21FUYANG XINYIHUA MATERIAL TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FUYANG XINYIHUA MATERIAL TECH
Publication Date
2017-11-21

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Abstract

The invention discloses a synthesis method of 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane and relates to the technical field of organic electroluminescent materials. On the basis of simplifying the synthesis method, wastewater generated by post-treatment is reduced, and the safety of a synthesis process is improved, so that the synthesis method is applicable to industrial production. The synthesis method comprises the following steps: firstly, carrying out a condensation reaction by taking 2,3,5,6-tetrafluoroterephthaloyl chloride andtrialkylsilyl cyanide as raw materials under an oxygen-free and dry environment to obtain an intermediate; and then, removing trialkylsiloxy in the intermediate to obtain F4-TCNQ. The synthesis method of the 2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane, disclosed by the invention, is used for synthesizing organic electroluminescent materials.
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Description

technical field

[0001] The invention relates to the technical field of organic electroluminescence materials, in particular to a synthesis method of 2,3,5,6-tetrafluoro-7,7',8,8'-tetracyanodimethyl-p-benzoquinone. Background technique

[0002] 2,3,5,6-tetrafluoro-7,7',8,8'-tetracyanodimethyl-p-benzoquinone is an organic semiconductor material with p-type doping system, and its hole injection in OLED screen It has a wide range of applications in layer and transport layer. The English name of the organic semiconductor material is 2,3,5,6-Tetrafluoro-7,7,8,8-tetracyanoquinodimethylthane, referred to as F4-TCNQ. The chemical molecular structure is as follows:

[0003]

[0004] Due to the high electron affinity of F4-TCNQ molecule, when it is applied to the hole injection layer and / or transport layer of the OLED screen, it can increase the conductivity of the organic semiconductor to 10S / cm-5S / cm, In order to achieve the purpose of improving the injection and transport of hol...

Claims

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