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Organic electroluminescent compound as well as preparation method and application thereof

An electroluminescence and compound technology, applied in the field of organic electroluminescence compounds and their preparation

Inactive Publication Date: 2021-02-26
JILIN OPTICAL & ELECTRONICS MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overall, the future direction of organic electroluminescent devices is to develop high-efficiency, long-life, low-cost white light devices and full-color display devices. However, the industrialization process of this technology still faces many key problems.

Method used

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  • Organic electroluminescent compound as well as preparation method and application thereof
  • Organic electroluminescent compound as well as preparation method and application thereof
  • Organic electroluminescent compound as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Embodiment 1: preparation compound HT-9

[0058]

[0059] 1. Under nitrogen protection, add raw material B-9 (50.00mmol) into a three-necked flask, add 160.00 mL of anhydrous tetrahydrofuran, then cool the reaction system to -78°C, add n-BuLi (60.00mmol) dropwise, and Stir at -78°C for 2 h to obtain a mixed solution. Material A-9 (50.00mmol) was dissolved in 150.00mL tetrahydrofuran solution, and then added dropwise to the above mixture. After the dropwise addition, the temperature was raised to room temperature, and stirred for 10h. Then, a saturated ammonium chloride solution was added to quench the reaction, the reaction solution was extracted three times with ethyl acetate, the organic phases were combined, washed with water and saturated brine, and dried with 20 g of anhydrous magnesium sulfate. Then add the dried solid to the ethanol solution, raise the temperature to 80°C, stir for 5 hours, then filter the solution while it is hot to obtain a solid, then rins...

Embodiment 2

[0072] Embodiment 2: preparation compound HT-25

[0073]

[0074] 1. Under the protection of nitrogen, add raw material B-25 (30.00mmol) into a three-necked flask, add 90.00 mL of anhydrous tetrahydrofuran, then cool the reaction system to -78°C, add n-BuLi (36.00mL) dropwise, and Stir at -78°C for 2 h to obtain a mixed solution. The raw material A-25 (30.00 mL) was dissolved in 70.00 mL of tetrahydrofuran solution, and then added dropwise to the above mixture. After the dropwise addition, the temperature was raised to room temperature, and stirred for 10 h. Then, add saturated ammonium chloride solution to quench the reaction, extract the reaction solution 3 times with ethyl acetate, combine the organic phases, and wash with water and saturated brine successively, then dry with 20g of anhydrous magnesium sulfate. Then add the dried solid to the ethanol solution, raise the temperature to 80°C, stir for 5 hours, then filter the solution while it is hot to obtain a solid, th...

Embodiment 3

[0086] Embodiment 3: preparation compound HT-42

[0087]

[0088] 1. Under nitrogen protection, add raw material B-42 (30.00mmol) into a three-necked flask, add 100.00 mL of anhydrous tetrahydrofuran, then cool the reaction system to -78°C, add n-BuLi (36.00mmol) dropwise, and Stir at -78°C for 2 h to obtain a mixed solution. The raw material A-42 (30.00 mmol) was dissolved in 100.00 mmol tetrahydrofuran solution, and then added dropwise to the mixture. After the dropwise addition, the temperature was raised to room temperature, and stirred for 10 h. Then, add saturated ammonium chloride solution to quench the reaction, extract the reaction solution 3 times with ethyl acetate, combine the organic phases, and wash with water and saturated brine successively, and then dry with 20g of anhydrous magnesium sulfate. Then add the dried solid to the ethanol solution, raise the temperature to 80°C, stir for 5 hours, then filter the solution while it is hot to obtain a solid, then r...

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Abstract

The invention discloses an organic electroluminescent compound. The general structural formula of the organic electroluminescent compound is as shown in a chemical formula 1 which is described in thespecification. The preparation method of the organic electroluminescent compound has the characteristics of simplicity and convenience in operation, low cost, environmental friendliness and the like.After the organic electroluminescent compound is applied as a light-emitting layer of an organic electroluminescent device to the organic electroluminescent device, the light-emitting efficiency of the device is improved, the service life of the device is prolonged, and the driving voltage of the device is reduced.

Description

technical field [0001] The present invention relates to the technical field of organic optoelectronic materials, more specifically to an organic electroluminescent compound and its preparation method and application. Background technique [0002] Organic electroluminescence is a display technology that has been studied the most in the past 20 years, and is recognized by the industry as one of the most promising flat panel display technologies that may replace liquid crystals in the future. Compared with liquid crystals, organic electroluminescent devices have the characteristics of ultra-thin, self-luminous, wide viewing angle, fast response, high luminous efficiency, good temperature adaptability, simple production process, low driving voltage, low energy consumption, and low cost. The light-emitting layer is composed of tens of nanometers of organic molecular films, and the thickness of the display device is only a few millimeters. [0003] The organic electroluminescence...

Claims

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Application Information

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IPC IPC(8): C07D311/96C07D407/12C07D409/12C07D407/14C07D409/14C07D405/10C07D405/14C07D335/04C07D409/04C07F7/08C09K11/06H01L51/50H01L51/54
CPCC07D311/96C07D407/12C07D409/12C07D407/14C07D409/14C07D405/10C07D405/14C07D335/04C07D409/04C07F7/0816C09K11/06C09K2211/1011C09K2211/1014C09K2211/1022C09K2211/1029C09K2211/1088C09K2211/1092C09K2211/1096H10K85/622H10K85/615H10K85/631H10K85/636H10K85/626H10K85/633H10K85/654H10K85/6572H10K85/6576H10K85/6574H10K85/40H10K50/15
Inventor 汪康王进政黄悦崔建勇赵贺李贺马晓宇
Owner JILIN OPTICAL & ELECTRONICS MATERIALS
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