Organic electroluminescent compound and uses thereof, and organic electroluminescent device

A technology for electroluminescent devices and compounds, applied in organic chemistry, electro-solid devices, electrical components, etc., can solve the problems of high cost of precious metal raw materials, poor device stability, large power consumption, etc., to achieve cost and price reduction, good space The effect of steric resistance and reducing operating voltage

Pending Publication Date: 2019-01-01
BEIJING ETERNAL MATERIAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

OLED full-color display requires red, blue, and green primary color materials, and blue light materials have always been the weakest link. At present, blue fluorescent materials can only use singlet excitons to emit light, so the luminous efficiency is low; blue phosphorescent materials have poor color purity, Problems such as high current induced quenching, poor device stability, high power consumption, severe efficiency roll-off under high brightness, and high cost of precious metal raw materials still need to be solved urgently

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 2

[0047]

[0048] Under nitrogen protection, add 2,4,6-triisopropylbenzoyl chloride (0.37mol, 100g) and m-bromobenzonitrile (0.75mol, 136.3g) into a 3000ml three-necked flask, and dissolve them in 800ml of dichloromethane , cooled to 0°C, kept stirring for 30 minutes, then added dropwise 200ml of antimony trichloride (0.37mol, 85.4g) dichloromethane solution, raised the temperature to room temperature and stirred for one hour, then heated to reflux for twelve hours, and cooled to room temperature , suction filtration under reduced pressure, the obtained solid was stirred with 3000ml of 28% cold ammonia solution at 0°C for 30 minutes, raised to room temperature and stirred for 3 hours, suction filtered, the solid was washed with 1000ml of water to obtain a white solid, and then heated and dissolved with 1000ml of DMF. Suction filtration under reduced pressure to remove insoluble matter and remove the solvent under reduced pressure to obtain 118.1 g of white crystals with a yiel...

Synthetic example 3

[0050]

[0051] Under nitrogen protection, add 2,4,6-triisopropylbenzoyl chloride (0.37mol, 100g) and m-bromobenzonitrile (0.75mol, 157.3g) into a 3000ml three-necked flask, and dissolve them in 800ml of dichloromethane , cooled to 0°C, kept stirring for 30 minutes, then added dropwise 200ml of antimony trichloride (0.37mol, 85.4g) dichloromethane solution, raised the temperature to room temperature and stirred for one hour, then heated to reflux for twelve hours, and cooled to room temperature , suction filtration under reduced pressure, the obtained solid was stirred with 3000ml of 28% cold ammonia solution at 0°C for 30 minutes, raised to room temperature and stirred for 3 hours, suction filtered, the solid was washed with 1000ml of water to obtain a white solid, and then heated and dissolved with 1000ml of DMF. Suction filtration under reduced pressure to remove insoluble matter and remove the solvent under reduced pressure to obtain 146.1 g of white crystals with a yiel...

Synthetic example 4

[0052] Synthesis Example 4: Synthesis of Compound C1

[0053]

[0054] Under nitrogen protection, add raw materials M1 (10g, 16.9mmol), carbazole (7.1g, 42.2mmol), potassium phosphate (10.7g, 50.7mmol) into a 500ml three-necked flask, dissolve in 300ml toluene, replace with nitrogen three times, and then add PD 2 (dba) 3 (0.2g, 1%), x-phos (0.3g, 3%), heat up to 110°C, react for 12 hours, cool down to room temperature, add water, dry the organic phase, remove the organic solvent under reduced pressure, dry silica gel By chromatography, 8.0 g of the product was obtained with a yield of 62%.

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Abstract

The present invention discloses an organic electroluminescent compound and uses of the organic electroluminescent compound in preparation of organic electroluminescent devices, and provides an organicelectroluminescent device, which comprise the organic electroluminescent compound. According to the present invention, by introducing the Tip-triazine carbazole structure, the compound achieves the good photoelectric property.

Description

technical field [0001] The present invention relates to a novel organic compound and its application in the field of organic electroluminescence display and lighting technology. Background technique [0002] At present, with the continuous advancement of OLED technology in the two major fields of lighting and display, people are paying more attention to the research on its core materials. An organic electroluminescent device with high efficiency and long life is usually the result of an optimized combination of device structure and various organic materials. As a result, this provides great opportunities and challenges for chemists to design and develop functionalized materials with various structures. Common functional organic materials include: hole injection materials, hole transport materials, hole blocking materials, electron injection materials, electron transport materials, electron blocking materials, luminescent host materials and luminescent guest (dye), etc. In o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D403/14C09K11/06H01L51/54
CPCC09K11/06C07D403/14C09K2211/1059C09K2211/1029H10K85/6572
Inventor 吕钟高文正范洪涛任雪艳
Owner BEIJING ETERNAL MATERIAL TECH
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