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Organic compound and organic electroluminescent device comprising same

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

Pending Publication Date: 2020-02-14
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 1

[0311] [Synthesis Example 1] Synthesis of R1

[0312]

[0313] Under nitrogen flow, 6.8 g (17.1 mmol) of A1, 8.7 g (18.8 mmol) of 2-(3'-bromobiphenyl-3-yl)-4,6-diphenyl-1,3,5 - Triazine, 1.0g (5mol%) of Pd (PPh 3 ) 4 , and 7.1g (51.2mmol) of potassium carbonate and 80ml / 40ml / 40ml of toluene / H 2 O / ethanol, stirred at 110°C for 3 hours.

[0314] After the reaction, the organic layer was separated using dichloromethane, and MgSO 4 The water is removed. After removing the solvent of the organic layer, the target compound R1 (8.4 g, 12.8 mmol, yield 75%) was obtained by column chromatography purification.

[0315] GC-Mass (theoretical value: 653.8g / mol, measured value: 653g / mol)

Synthetic example 2R8

[0316] [Synthesis Example 2] Synthesis of R8

[0317]

[0318] Under a stream of nitrogen, 6.8 g (17.1 mmol) of A1, 9.2 g (18.8 mmol) of 2-bromo-4,6-bis(dibenzo[b,d]furan-4-yl)-1,3 , 5-triazine, 1.0g (5mol%) of Pd (PPh 3 ) 4 And 7.1g (51.2mmol) of potassium carbonate and 80ml / 40ml / 40ml of toluene / H 2 O / ethanol, stirred at 110°C for 3 hours.

[0319] After the reaction, the organic layer was separated using dichloromethane, and MgSO 4 The water is removed. After removing the solvent of the organic layer, it purified by column chromatography to obtain the target compound R8 (9.0 g, 13.1 mmol, yield 77%).

[0320] GC-Mass (theoretical value: 681.8g / mol, measured value: 682g / mol)

Synthetic example 3R21

[0321] [Synthesis Example 3] Synthesis of R21

[0322]

[0323] Under a nitrogen stream, 6.8 g (17.1 mmol) of A2, 8.7 g (18.8 mmol) of 2-(3'-bromobiphenyl-3-yl)-4,6-diphenyl-1,3,5 - Triazine, 1.0g (5mol%) of Pd (PPh 3 ) 4 , and 7.1g (51.2mmol) of potassium carbonate and 80ml / 40ml / 40ml of toluene / H 2 O / ethanol, stirred at 110°C for 3 hours.

[0324] After the reaction, the organic layer was separated using dichloromethane, and MgSO 4 The water is removed. After removing the solvent of the organic layer, the target compound R21 (7.8 g, 11.9 mmol, yield 70%) was obtained by column chromatography purification.

[0325] GC-Mass (theoretical value: 654.8g / mol, measured value: 655g / mol)

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Abstract

The present invention relates to a novel compound and an organic electroluminescent device comprising the same. The compound according to the present invention is used as an organic layer of an organic electroluminescent device and, preferably, as a light emitting layer, thereby enabling luminescence efficiency, driving voltage, lifespan and the like of the organic electroluminescent device to improve.

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 compound. Background technique [0002] Starting from Bernanose's observation of organic thin film luminescence in the 1950s, research was carried out on organic electroluminescent (EL) elements developed from the blue electroluminescence of anthracene single crystals in 1965, followed by 1987 In 1999, Tang proposed an organic electroluminescent element with a laminated structure consisting of two functional layers, a hole layer and a light-emitting layer. Afterwards, in order to manufacture high-efficiency and long-life organic electroluminescence 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 electroluminescence element...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D231/56C07D403/10C07D405/14C07D409/14H01L51/00H01L51/50
CPCC07D231/56C07D403/10C07D405/14C07D409/14C09K11/06C07D401/14C07D251/24C07D409/10C07D405/10H10K85/654H10K85/6576H10K85/6574H10K85/6572H10K50/14H10K50/17H10K50/11C09K2211/1018H10K50/156H10K50/166H10K2101/10
Inventor 金弘锡金荣培
Owner DOOSAN SOLUS CO LTD