Organic compound and organic electroluminescent device comprising same

A compound and condensation technology, applied in the field of new organic compounds and organic electroluminescent elements, can solve the problems of poor thermal stability, unsatisfactory life of light-emitting elements, low glass transition temperature, etc.

Pending Publication Date: 2019-06-18
DOOSAN SOLUS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, conventional organic layer materials have advantages in light emitting characteristics, but have a low glass transition temperature and very poor thermal stability, so they cannot achieve a satisfactory level in terms of the lifetime of organic electroluminescent devices.

Method used

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  • Organic compound and organic electroluminescent device comprising same
  • Organic compound and organic electroluminescent device comprising same
  • Organic compound and organic electroluminescent device comprising same

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1J-1

[0316] [Synthesis Example 1] Synthesis of J-1

[0317]

[0318] Under nitrogen flow, A-1 (2.48g, 10mmol), 2,4-diphenyl-6-(3-(4,4,5,5-tetramethyl-1,3,2-dioxa Cyclopentaboran-2-yl)phenyl)-1,3,5-triazine (4.35g, 10mmol), Pd(OAc) 2 (0.11g, 5mol%), Xphos (0.47g, 2mmol), Cs 2 CO 3 (6.51g, 20mmol), toluene / EtOH / H 2 O (80ml / 40ml / 20ml) was mixed and stirred at 110°C for 6 hours. After the reaction, extract with dichloromethane, add MgSO 4 to filter. The solvent of the filtered organic layer was removed, and then the target compound J-1 (2.57 g, yield 54%) was obtained by column chromatography.

[0319] [LCMS]: 476

Synthetic example 2J-2

[0320] [Synthesis Example 2] Synthesis of J-2

[0321]

[0322] Using A-2 (2.48g, 10.0mmol) instead of A-1, using 2,4-diphenyl-6-(3'-(4,4,5,5-tetramethyl-1,3,2- Dioxaborolan-2-yl)-[1,1'-biphenyl]-3-yl)-1,3,5-triazine (5.11g, 10.0mmol) instead of 2,4-bis Phenyl-6-(3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1,3,5-tri Except for oxazine, the same procedure as in Synthesis Example 1 was carried out to obtain the target compound J-2 (3.03 g, yield 55%).

[0323] [LCMS]: 552

Synthetic example 3J-3

[0324] [Synthesis Example 3] Synthesis of J-3

[0325]

[0326] Using A-3 (2.48g, 10.0mmol) instead of A-1, using 10-phenyl-2'-(4,4,5,5-tetramethyl-1,3,2-dioxaborol Alk-2-yl)-10H-spiro[acridine-9,9'-fluorene] (5.33g, 10.0mmol) in place of 2,4-diphenyl-6-(3-(4,4,5,5 -Tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1,3,5-triazine, except that, implement the same process as Synthesis Example 1 to obtain Target compound J-3 (3.21 g, yield 56%).

[0327] [LCMS]: 574

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Abstract

The present invention relates to a novel compound and an organic electroluminescent device comprising same. The compound according to the present invention is used in an organic layer of an organic electroluminescent device, preferably an electron transport layer or an electron transport auxiliary layer, and can increase the luminous efficiency, driving voltage, and lifespan of the organic electroluminescent device.

Description

technical field [0001] The present invention relates to a novel organic compound usable as a material for an organic electroluminescence element and an organic electroluminescence element comprising the same. Background technique [0002] Starting from Bernanose's observation of organic thin film light emission in the 1950s, research was carried out on organic electroluminescent (EL) devices developed from the blue electroluminescence of anthracene single crystals in 1965, followed by research in 1987 An organic electroluminescent element having a laminated structure consisting of two functional layers, a hole layer and a light emitting layer, was proposed by Tang. Afterwards, in order to manufacture high-efficiency and long-life organic electroluminescent elements, the form of introducing each characteristic organic substance layer into the element was developed, and the development of dedicated substances for this was carried out. [0003] In an organic electroluminescenc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D471/04C07D471/14C07D487/04C07D487/14C07D491/147C07D491/153C09K11/06H01L51/00H01L51/50
CPCC07D471/04C07D471/14C07D487/04C07D487/14C07D491/147C07D491/153C09K11/06C07D495/14H10K85/636H10K85/633C09K2211/1029H10K85/657H10K50/15H10K50/11H10K50/00H10K50/18H10K85/622H10K85/626H10K85/631H10K85/654H10K85/6572H10K99/00H10K50/16
Inventor 李龙焕沈载依
Owner DOOSAN SOLUS CO LTD
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