Carbazole derivative and application thereof

An electroluminescent device and anode technology, which is applied in the direction of organic chemistry, luminescent materials, chemical instruments and methods, etc., can solve the problems of expensive precious metal raw materials, lack of main materials of deep blue light materials, etc., to reduce power consumption and improve fluorescence luminous efficiency Effect

Active Publication Date: 2018-06-08
BEIJING ETERNAL MATERIAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For deep blue light devices, on the one hand, the blue shift of the spectrum can be achieved by adjusting the device microcavity, but when using sky blue light materials, there will be a large energy loss; therefore, develop high-efficiency materials with intrinsic deep blue light spectra it becomes very necessary
[0005] Although blue phosphorescent materials have theoretically high efficiency, they have not yet been commercialized due to the lack of stable deep blue materials and matching host materials, as well as expensive precious metal raw materials.

Method used

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  • Carbazole derivative and application thereof
  • Carbazole derivative and application thereof
  • Carbazole derivative and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0056]

[0057] Under argon flow, 4-bromo-9-phenylcarbazole (32.2g, 0.1mol), aniline (9.3g, 0.1mol), tris(dibenzylideneacetone) dipalladium ( 0) [Pd2(dba)3] 0.92g, tri-tert-butylphosphine 50% toluene solution 0.92ml, sodium tert-butoxide (19.2g, 0.2mol), dehydrated toluene 250mL, reflux reaction for 3 hours. After cooling, water and EA were added for extraction, the organic phase was filtered through celite and concentrated, and the obtained crude product was washed with ethanol to obtain a light yellow solid M1=21.9 g, yield 84.5%.

[0058] Under argon flow, put 1,6-dibromopyrene (3.6g, 0.01mol), N-[4-(N-phenylcarbazole)]-aniline (6.7g, 0.02mol) into a 250mL eggplant-shaped flask , Tris (dibenzylidene acetone) dipalladium (0) [Pd2 (dba) 3] 0.08g, tri-tert-butylphosphine 50% toluene solution 0.5ml, sodium tert-butoxide (2.9g, 0.03mol), dehydrated toluene 100mL, reflux reaction for 3 hours. After cooling, the reaction solution was filtered with diatomaceous earth, and the ...

Synthetic example 2

[0061] Compound A2 was prepared in the same manner as in Example 1, except that N-[4-(N-phenylcarbazole)]-aniline was replaced by equivalent N-[4-(N-phenylcarbazole)] -2-Methylaniline, after the reaction was completed, 6.7 g of white solid was isolated, with a yield of 75%.

Synthetic example 3

[0063] Compound A3 was prepared in the same manner as in Example 1, except that N-[4-(N-phenylcarbazole)]-aniline was replaced by equivalent N-[4-(N-phenylcarbazole)]- After the reaction was completed, 3-methylaniline was isolated to obtain 6.7 g of white solid, with a yield of 75%.

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Abstract

The invention provides a novel compound with a general structure formula (I) shown in the description, wherein Ar1 and Ar2 are selected from substituted or unsubstituted aryl, heteroaryl, fused-ring aryl and fused heterocyclic aryl, preferably, substituted or unsubstituted aryl and fused-ring aryl, a substituent group is a linear chain, a branched chain or cycloalkyl, L is selected from four structures including a structure A, a structure B, a structure C and a structure D when n is equal to 2, and L is selected from two structures including a structure E and a structure F when n is equal to 1.

Description

technical field [0001] The invention relates to a novel organic compound, in particular to an aromatic amine derivative that can be used in an organic electroluminescent device, and also to an organic electroluminescent device using the aromatic amine derivative. Background technique [0002] Organic electroluminescent display (hereinafter referred to as OLED) has a series of advantages such as self-luminescence, low-voltage DC drive, full curing, wide viewing angle, light weight, simple composition and process, etc. Compared with liquid crystal display, organic electroluminescent display is not It needs a backlight source, has a large viewing angle, low power, and its response speed can reach 1000 times that of a liquid crystal display, but its manufacturing cost is lower than that of a liquid crystal display with the same resolution. Therefore, organic electroluminescent devices have broad application prospects. [0003] Organic electroluminescent devices (OLEDs), which ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D209/88C07D401/14C07D409/12C07D401/12C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07D209/88C07D401/12C07D401/14C07D409/12C09K2211/1092C09K2211/1029H10K85/6576H10K85/6572H10K50/11
Inventor 范洪涛李之洋任雪艳张向慧
Owner BEIJING ETERNAL MATERIAL TECH
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