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Compound and organic electroluminescence device

A compound and electromechanical technology, applied in the field of organic electroluminescent display and lighting technology, and in the field of organic electroluminescent devices, can solve problems such as affecting power efficiency, reducing device luminous efficiency, and reducing recombination probability

Inactive Publication Date: 2018-11-02
BEIJING ETERNAL MATERIAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally speaking, electron-transporting materials are compounds with electron-deficient nitrogen-containing heterocyclic groups. Most of them have high electron affinity, so they have a strong ability to accept electrons. , the electron mobility of common electron transport materials such as AlQ 3 (Aluminum octahydroxyquinoline) is much lower than the hole mobility of the hole transport material, so in OLED devices, on the one hand, it will lead to a reduction in the recombination probability of holes and electrons caused by the uneven injection and transport of carriers. , thereby reducing the luminous efficiency of the device. On the other hand, electron transport materials with lower electron mobility will lead to an increase in the operating voltage of the device, thereby affecting power efficiency and detrimental to energy saving.

Method used

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  • Compound and organic electroluminescence device
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  • Compound and organic electroluminescence device

Examples

Experimental program
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Effect test

Synthetic example 2

[0048] Synthesis Example 2: Synthesis of Intermediate M2

[0049]

[0050] Intermediate M1 (31mmol, 10g), palladium acetate (1%, 0.07g), tricyclohexylphosphine tetrafluoroborate (3%, 0.34g) and DMF (200ml) were mixed, heated to 130°C for 3 hours , after the completion of the reaction, cool to room temperature, add 400 milliliters of pure water, extract with ethyl acetate, wash the organic phase with 300 ml of water, concentrate the organic phase under reduced pressure, mix silica gel and pass through a silica gel column (eluent: sherwood oil: ethyl acetate =2:1), the compound intermediate M2 (6.1 g, 80.1%) was obtained.

Synthetic example 3

[0051] Synthesis Example 3: Synthesis of Intermediate M3

[0052]

[0053] Under nitrogen protection, 1,8-naphtholactam (59.2mmol, 10g), 1-bromo-2-iodo-4 nitrobenzene (59.2mmol, 19.4g) was added in a 500ml three-necked flask, sodium tert-butoxide ( 118.4mmol, 11.2g), Pd 2 (dba) 3 (0.59mmol, 0.54g), 10% tri-tert-butylphosphine (2%, 15.5ml), dissolved in 200ml of toluene, reacted at 100°C for 3h, treated, washed with 200ml of water, the organic phase was passed through a silica gel column, and the eluent was decompressed Concentrate, wash the solid with 100ml ethanol, boil and wash with 100ml petroleum ether, and filter the product to obtain a total of 18.5g of intermediate M3, with a yield of 85% and a molecular weight of 368

Synthetic example 4

[0054] Synthesis Example 4: Synthesis of Intermediate M4

[0055]

[0056] Mix intermediate M3 (36.8g, 100mmol), palladium acetate (0.23g, 1.0mmol), tricyclohexylphosphine tetrafluoroborate (1.11g, 3.0mmol) and DMF (700ml) and heat to 130°C for reaction After 3 hours, after the reaction was over, cool to room temperature, add 700 ml of pure water, extract with ethyl acetate, wash the organic phase with 300 ml of water, concentrate under reduced pressure and mix with silica gel, pass through a silica gel column (eluent: petroleum ether: ethyl acetate = 2:1), to obtain compound intermediate M4 (23.73 g, 82.4%).

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Abstract

The invention discloses an organic electroluminescence compound and application of the compound in preparation of an organic electroluminescence device. The invention further provides the organic electroluminescence device. The device comprises the organic electroluminescence compound. The compound is high in electronic pouring performance and transmission performance after a lactam condensed ringstructure is introduced.

Description

technical field [0001] The present invention relates to a new compound, an organic electroluminescence device using the compound, and further, an application of the compound in the technical fields of organic electroluminescence display and lighting. 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 mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D519/00C07F7/10C09K11/06H01L51/54H01L51/50
CPCC09K11/06C07D519/00C07F7/10C09K2211/1092C09K2211/1088C09K2211/1048C09K2211/1059C09K2211/1011C09K2211/1007C09K2211/1029H10K85/624H10K85/623H10K85/622H10K85/6565H10K85/626H10K85/654H10K85/6576H10K85/6574H10K85/6572H10K50/16H10K50/11
Inventor 范洪涛吕钟任雪艳
Owner BEIJING ETERNAL MATERIAL TECH
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