Compound and applications in organic electroluminescent field

A compound, unsubstituted technology, applied in the field of new organic compounds, can solve the problems of mismatch between electrons and holes in the light-emitting layer, efficiency roll-off, shortened lifespan, etc., achieve good hole and electron transport, prolong lifespan, and improve stability. Effect

Pending Publication Date: 2019-06-25
BEIJING ETERNAL MATERIAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The single carrier transport capability will cause a mismatch of electrons and holes in

Method used

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  • Compound and applications in organic electroluminescent field
  • Compound and applications in organic electroluminescent field
  • Compound and applications in organic electroluminescent field

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0044] Synthesis Example 1: Synthesis of Compound A1

[0045]

[0046] Nitrogen protection, in the reaction flask, add 3.9g (17mmol) of 4-bromobenzene-2-(2-pyridyl), 3.6g (15mmol) of 3-bromocarbazole, Pd 2 (dba) 3 0.9g (0.785mmol, 0.5%), toluene 1500ml, potassium carbonate 43.3g (31mmol), react at 100°C for 3.5h. The reaction was stopped, cooled to room temperature, filtered, and the resulting solid was purified by recrystallization in toluene to give intermediate M1.

[0047] Nitrogen protection, in the reaction flask, add intermediate M1 6.7g (17mmol), phenoxazine 3.5g (15mmol), Pd 2 (dba) 3 0.9g (0.785mmol, 0.5%), toluene 1500mL, potassium carbonate 43.3g (31mmol), react at 100°C for 3.5h. The reaction was stopped, cooled to room temperature, filtered, and the obtained solid was purified by recrystallization in toluene to obtain compound A1.

[0048] NMR data of compound A1:

[0049] 1H NMR (400MHz, Chloroform) δ8.59-8.02(m, 12H), 7.93(d, J=7.6Hz, 9H), 7.52(s, 3H),...

Synthetic example 2

[0051] Synthesis Example 2: Synthesis of Compound A14

[0052]

[0053] Nitrogen protection, in the reaction flask, add 5.7g (17mmol) of 5-bromo-2-cyano-pyrimidine, 3.6g (15mmol) of 3-bromocarbazole, Pd 2 (dba) 3 0.9g (0.785mmol, 0.5%), toluene 1500mL, potassium carbonate 43.3g (31mmol), react at 100°C for 3.5h. The reaction was stopped, cooled to room temperature, filtered, and the resulting solid was purified by recrystallization in toluene to give intermediate M14-1.

[0054] In the reaction flask, add M2-128g (173mmol), p-chlorophenylboronic acid 30g (157mmol), tetrakis (triphenylphosphine palladium) 0.9g (0.785mmol, 0.5%), toluene 1500mL, ethanol 1000mL, potassium carbonate 43.3g ( 314mmol) / water 1000mL, react at 80°C for 3.5h. The reaction was stopped, cooled to room temperature, filtered and the resulting solid was purified by recrystallization from toluene to afford intermediate M14.

[0055] Nitrogen protection, in the reaction flask, add intermediate 7.6g M14 ...

Embodiment 1

[0078] The glass plate coated with the ITO transparent conductive layer is ultrasonically treated in a commercial cleaning agent, rinsed in deionized water, ultrasonically degreased in acetone: ethanol mixed solvent, baked in a clean environment until the water is completely removed, and then cleaned with ultraviolet light. Light and ozone cleaning, and bombardment of the surface with a beam of low-energy cations;

[0079] Place the above-mentioned glass substrate with an anode in a vacuum chamber, evacuate to 1×10-5~9×10-3Pa, and vacuum-deposit HT-11 on the above-mentioned anode layer film as a hole injection layer. The rate is 0.1nm / s, and the evaporation film thickness is 10nm;

[0080] On the hole injection layer, HT-5 was vacuum evaporated as the hole transport layer of the device, the evaporation rate was 0.1nm / s, and the total film thickness was 80nm;

[0081] The light-emitting layer of the device is vacuum-evaporated on the hole transport layer. The light-emitting la...

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PUM

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Abstract

The present invention provides a compound, which is represented by the following general formula (I), wherein Y is C or N, X is O or S or NR2, L is selected from a single bond, C6-C30 aryl, C10-C30 fused ring aryl, and C3-C30 heteroaryl or fused ring heteroaryl, Ar is selected from C3-C30 heteroaryl or fused ring heteroaryl when all the Y are C, Ar is selected from C6-C30 aryl, C10-C30 fused ringaryl, and C3-C30 heteroaryl or fused ring heteroaryl when at least one of Y is N, R<1> and R<2> are respectively and independently selected from C1-C12 alkyl, C6-C30 aryl, C10-C30 fused ring aryl, andC3-C30 heteroaryl or fused ring heteroaryl, and the aryl, the heteroaryl, and the fused ring aryl and/or the fused ring heteroaryl can have a substituent. The present invention further provides an organic electroluminescent device containing the compound.

Description

technical field [0001] The invention relates to a novel organic compound, in particular to a compound used in an organic electroluminescence device and its application in the field of organic electroluminescence. 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] With the continuous advancement of OLED technology in the two major fields of lighting and display, peo...

Claims

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Application Information

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IPC IPC(8): C07D413/14C07D417/14C07D403/14C07D471/04C07D487/04C09K11/06H01L51/54
Inventor 邢其锋李之洋刘叔尧
Owner BEIJING ETERNAL MATERIAL TECH
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