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Compound and organic light emitting device comprising same

A technology of organic light-emitting devices and compounds, applied in the field of organic light-emitting devices, can solve the problems of short life and high price of metal complexes, and achieve the effect of improving efficiency

Active Publication Date: 2020-02-11
LG CHEM LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the case of the above-mentioned phosphorescent material, although high efficiency can be achieved, there are problems of high price and short lifetime of the metal complex required for realizing phosphorescence

Method used

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  • Compound and organic light emitting device comprising same
  • Compound and organic light emitting device comprising same
  • Compound and organic light emitting device comprising same

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1-1

[0139] Synthesis of Compound 1-A

[0140] [Reaction formula 1-1]

[0141]

[0142] 30 g (89.5 mmol) of 2-bromo-1-chloro-4-fluoro-3-iodobenzene, 90 mmol of (2-hydroxyphenyl)boronic acid, 200 mL of tetrahydrofuran and 100 mL of water were mixed and heated to 60°C. 268.5 mmol of potassium carbonate and 1 mmol% of tetrakistriphenylphosphine palladium were added thereto, and the mixture was stirred under reflux for 3 hours. After the reaction, the organic layer was extracted from the reaction solution returned to room temperature, followed by distillation. Purification was carried out by column chromatography using chloroform / hexane to obtain 21.6 g of compound 1-A (yield 80%).

[0143] MS[M+H]+=301

manufacture example 1-2

[0144] Synthesis of Compound 1-B

[0145] [Reaction formula 1-2]

[0146]

[0147] 30 g (89.5 mmol) of 1-bromo-4-chloro-3-fluoro-2-iodobenzene, 90 mmol of benzenethiol, 200 mL of tetrahydrofuran and 100 mL of water were mixed and heated to 60°C. 268.5 mmol of potassium carbonate and 1 mmol% of tetrakistriphenylphosphine palladium were added thereto, and the mixture was stirred under reflux for 3 hours. After the reaction, the organic layer was extracted from the reaction solution returned to room temperature, followed by distillation. Purification was carried out by column chromatography using chloroform / hexane to obtain 22.8 g of compound 1-B (yield 70%).

[0148] MS[M+H]+=364

manufacture example 2-1

[0149] Synthesis of Compound 2-A

[0150] [Reaction 2-1]

[0151]

[0152] 20 g (66.3 mmol) of Compound 1-A, 200 mL of dimethylformamide, and 133 mmol of potassium carbonate were mixed, and heated at 100° C. for 5 hours. After the reaction, the reaction solution returning to room temperature was carried out in water for reverse precipitation ( reverse precipitation) to obtain a solid, and the obtained solid was purified by column chromatography using chloroform / hexane to obtain 17.7 g of Compound 2-A (95% yield).

[0153] MS[M+H]+=281

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PUM

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Abstract

The present specification relates to a compound of chemical formula 1 and an organic light emitting device comprising the same.

Description

technical field [0001] This application claims priority based on Korean Patent Application No. 10-2017-0145960 filed with the Korean Patent Office on November 3, 2017 and Korean Patent Application No. 10-2018-0132914 filed with the Korean Patent Office on November 1, 2018 , the entire contents of which are included in this specification. [0002] The present description relates to compounds and organic light emitting devices comprising them. Background technique [0003] In order to commercialize organic light emitting devices, it is necessary to increase the efficiency of light emitting materials, for which research on phosphorescence and delayed fluorescence materials is actively being conducted. However, in the case of the phosphorescent material described above, although high efficiency can be achieved, there are problems in that the metal complex required for realizing phosphorescence is expensive and has a short lifetime. [0004] In the case of delayed fluorescent m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D405/14C07D409/14C09K11/06H01L51/00H01L51/50
CPCC07D405/14C07D409/14C09K11/06C09K2211/1029C09K2211/1088C09K2211/1092H10K85/6574H10K85/6576H10K85/6572H10K50/12
Inventor 尹洪植李俊烨柳志广洪玩杓金振珠
Owner LG CHEM LTD