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Organic electroluminescent compound, use thereof and organic electroluminescent device

A compound and electroluminescence technology, applied in the fields of organic chemistry, electro-solid devices, electrical components, etc., can solve the problems of low luminous efficiency and high device operating voltage, and achieve the effect of improving luminous efficiency and reducing operating voltage

Active Publication Date: 2017-02-22
BEIJING ETERNAL MATERIAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to overcome the defects of high operating voltage and low luminous efficiency of devices made of existing organic electroluminescent compounds, the present invention provides an organic electroluminescent compound that can effectively reduce the operating voltage of the device and improve the luminous efficiency of the device

Method used

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  • Organic electroluminescent compound, use thereof and organic electroluminescent device
  • Organic electroluminescent compound, use thereof and organic electroluminescent device
  • Organic electroluminescent compound, use thereof and organic electroluminescent device

Examples

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preparation example Construction

[0042] Preparation of organic electroluminescent compounds:

[0043] Synthesis Example 1. Synthesis of Intermediate M1:

[0044]

[0045] Add 1,2-bis(bromomethyl)benzene (26.4g, 0.1mol) and 500ml of anhydrous tetrahydrofuran (THF) into a 1-liter three-necked flask, and add activated zinc powder (13g, 0.2mol), reacted for 2 hours to make a double zinc reagent. CuI (2 g, 10 mmol) and phthaloyl chloride (20 g, 0.1 mol) were added, and reacted at room temperature for 1 hour, and then reacted under reflux for 10 hours. After completion of the reaction, slowly add saturated ammonium chloride aqueous solution to quench the reaction, then extract three times with 100ml ethyl acetate, combine the organic phases obtained, anhydrous MgSO 4 After drying and removing the organic solvent under reduced pressure, the residue was subjected to column separation to obtain intermediate compound M (18.5 g, yield 78.4%).

[0046] Add phenylhydrazine hydrochloride (63.6 g, 0.44 mol), intermedi...

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Abstract

The invention discloses an organic electroluminescent compound and use of the compound in preparation of organic electroluminescent devices. The invention also provides an organic electroluminescent device, which includes the organic electroluminescent compound. The organic electroluminescent compound provided by the invention can effectively reduce the working voltage of the organic electroluminescent device and improve the luminous efficiency of the organic electroluminescent device.

Description

technical field [0001] The invention relates to the field of organic chemistry, in particular to an organic electroluminescent compound and its application. Background technique [0002] With the continuous advancement of OLED technology in the two major fields of lighting and display, people pay more attention to the research on its core materials. An organic electroluminescent device with high efficiency and long life is usually the result of the optimal combination of device structure and various organic materials. . Common organic materials include: hole injection materials, hole transport materials, hole blocking materials, electron injection materials, electron transport materials, electron blocking materials, and luminescent host materials and luminescent objects (dye). [0003] At present, hole transport materials and luminescent host materials are mostly aromatic polyamine compounds or compounds with carbazole skeleton, mainly triarylamine derivatives, such as NPB,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06C07D487/04C07D519/00H01L51/54
Inventor 范洪涛张向慧朱柘权任雪艳
Owner BEIJING ETERNAL MATERIAL TECH