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Organic electroluminescence material and application thereof

An electroluminescent material and electroluminescent technology, applied in the fields of luminescent materials, organic chemistry, circuits, etc., can solve the problem of low activity, and achieve the effect of good device performance, good efficiency and good film stability

Active Publication Date: 2015-08-05
VALIANT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The chemically active positions of Qu are at the 6-position and 12-position. Therefore, the chemical modification of Qu is mainly concentrated on these two positions. The 2-position, 3-position, 8-position, and 9-position of Qu also have certain activities Chemical modification is possible, but the activity of the 1-position and 7-position of Qu is very low. At present, there is no literature report on the chemical modification of the 1-position and 7-position of Qu

Method used

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  • Organic electroluminescence material and application thereof
  • Organic electroluminescence material and application thereof
  • Organic electroluminescence material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The preparation of embodiment 1 intermediate compound 4

[0047]

[0048] Preparation of Compound 1: In a 5L three-necked flask, add naphthyl-1,5-dicarbaldehyde (92g, 0.5mol), methoxymethyltriphenylphosphine chloride (410g, 1.2mol), toluene (1800g), N 2Protection, lower the temperature to the temperature in the reaction bottle <-5°C, dissolve potassium tert-butoxide (135g, 1.2mol) in 520g THF, slowly drop into the three-necked flask, control the temperature in the bottle to <5°C, and complete the dropwise addition in 0.5h , -5 ℃ ~ 5 ℃ insulation reaction for 3h. Add 600g of deionized water, stir for 10min, separate liquid, wash the organic phase with 600mL X 2 water, remove toluene under reduced pressure, add 1400g of petroleum ether, stir for 0.5h, filter with suction, rinse the filter cake with 400g of petroleum ether, collect the filtrate, remove Petroleum ether was used to obtain compound 1, with a total weight of 97.5 g, a yield of 81.3%, MS (m / s): 240.1, and ...

Embodiment 2

[0052] The preparation of embodiment 2 intermediate compound 6

[0053]

[0054] Using cyclopentenyl trimethylsilyl ether instead of cyclohexenyl trimethylsilyl ether, compound 6 was prepared according to the method described in Example 1, and the yields of the two-step reactions were 21.9% and 76.2%, respectively, to obtain compound 6 fine products 21.5g, high-resolution mass spectrometry, ESI source, positive ion mode, molecular formula C 24 h 18 Br 2 , the theoretical value is 465.9755, and the test value is 465.9758.

Embodiment 3

[0055] The preparation of embodiment 3 target compound C01

[0056]

[0057] In a 250mL three-necked flask, add compound 4 (2.47g, 5mmol) prepared in Example 1, 2-naphthaleneboronic acid (2.1g, 12mmol), K 2 CO 3 (6.0g, 43mmol), toluene (80mL), deionized water (24mL), N 2 protection, adding Pd(PPh 3 ) 4 (320mg), warming up to reflux, reacting for 36 hours, stopping the reaction, cooling down, there is solid precipitation, suction filtration, 150mL deionized water rinses the filter cake, 50mL deionized ethanol rinses the filter cake, collects the filter cake, adds 300mL toluene, Heat up to reflux to obtain a clear liquid, quickly pass through a 10cm thick silica gel layer while it is hot, collect the filtrate, naturally cool down, and place it overnight, solids are precipitated, filtered by suction, and the target object C01 is obtained. The weight of the crude product is 2.08g. Purification by sublimation at a sublimation temperature of 360° C. to obtain 1.82 g of target...

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Abstract

The invention relates to organic electroluminescence material and application thereof. The organic electroluminescence material is micro-molecular organic electroluminescence material which uses chrysene with naphthenic base substituent group as center. The organic electroluminescence material is excellent in film stability, proper in molecular energy level and capable of being used as micro-molecular blue light emitting material for the organic electroluminescence field.

Description

technical field [0001] The invention relates to an organic electroluminescent material and its application, belonging to the field of organic electroluminescent materials. Background technique [0002] Organic light-emitting diode (OLED) was produced in the 1980s. Because of its many advantages such as self-illumination, wide viewing angle, fast response speed, and flexible display, it is currently developing rapidly and is very likely to Becoming the best candidate for the next-generation flat panel display technology has attracted great attention from people. [0003] OLED devices are divided into small-molecule devices and polymer devices. Small-molecule devices often have a multi-layer sandwich structure, and each layer has a different function. This feature brings convenience to the layer-by-layer improvement in the material research and development process. But at the same time, in order to obtain OLED devices with excellent performance, it is necessary to ensure the ...

Claims

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Application Information

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IPC IPC(8): C09K11/06C07C13/62C07C13/66C07C1/32C07D209/86C07D307/91H01L51/54
Inventor 石宇盛磊刘英瑞葛立权胡葆华孟凡民
Owner VALIANT CO LTD
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