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Novel organic electroluminescent compounds and organic electroluminescent device using the same

一种化合物、致发光的技术，应用在有机化学、周期表第4/14族元素的化合物、发光材料等方向，能够解决不能提供纯蓝色光、不适全色显示器等问题

Inactive Publication Date: 2010-03-31
GRACEL DISPLAY INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Specifically, pure blue implementations with symmetrical structures in the disclosed patents are not possible, and materials that cannot provide pure blue light are not suitable for application in full-color displays:

Method used

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  • Novel organic electroluminescent compounds and organic electroluminescent device using the same
  • Novel organic electroluminescent compounds and organic electroluminescent device using the same
  • Novel organic electroluminescent compounds and organic electroluminescent device using the same

Examples

Experimental program
Comparison scheme
Effect test

preparation Embodiment 1

[0191] [Preparation Example 1] Preparation of Compound (8)

[0192]

[0193] Preparation of compound (A)

[0194] Under nitrogen atmosphere, 3-bromopyridine (96 μL, 1 mmol) and diethyl ether (10 mL) were injected into a 50 mL round bottom flask, and the mixture was stirred. After the mixture was cooled to -78°C, butyllithium (2.5 mL, 1 mmol, 2.5M in hexane) was slowly added thereto. After stirring at -78°C for 1 hour, dimethyl phthalate (0.17 mL, 1 mmol) was added slowly at the same temperature. After stirring at -78°C for 2 hours, it was slowly warmed to room temperature, and water (5 mL) was added thereto to effect hydrolysis. The organic layers obtained by extraction with ether were collected and dried. After removal of the solvent, the residue was purified by column chromatography to obtain Compound (A) (0.14 g, 56%) as a solid product.

[0195] Preparation of compound (B)

[0196] Under a nitrogen atmosphere, compound (A) (0.11 g, 0.44 mmol) and THF (5 mL) wer...

preparation Embodiment 2

[0201] [Preparation Example 2] Preparation of compound (383)

[0202]

[0203] Preparation of compound (D)

[0204] Under nitrogen atmosphere, 2-bromopyridine (96 μL, 1 mmol) and diethyl ether (10 mL) were injected into a 50 mL round bottom flask, and the mixture was stirred. After cooling it to -78°C, butyllithium (2.5 mL, 1 mmol, 2.5M in hexane) was slowly added thereto. After stirring at -78°C for 1 hour, dimethyl phthalate (0.17 mL, 1 mmol) was added slowly at the same temperature. After stirring at -78°C for 2 hours, the temperature was slowly raised to room temperature, and water (5 mL) was added thereto to perform hydrolysis. The enriched organic layer obtained by ether extraction was dried. After removal of the solvent, the residue was purified by column chromatography to obtain Compound (D) (0.14 g, 56%) as a solid product.

[0205] Preparation of compound (E)

[0206] Under nitrogen atmosphere, Compound (D) (0.11 g, 0.44 mmol) and THF (5 mL) were poured i...

preparation Embodiment 3

[0211] [Preparation Example 3] Preparation of Compound (758)

[0212]

[0213] Preparation of compound (G)

[0214] Under nitrogen atmosphere, 3-bromopyridine (96 μL, 1 mmol) and diethyl ether (10 mL) were injected into a 50 mL round bottom flask, and the mixture was stirred. After the mixture was cooled to -78°C, butyllithium (2.5 mL, 1 mmol, 2.5M in hexane) was slowly added thereto. After stirring at -78°C for 1 hour, dimethyl phthalate (0.17 mL, 1 mmol) was added slowly at the same temperature. After stirring at -78°C for 2 hours, the temperature was slowly raised to room temperature, and water (5 mL) was added thereto to carry out hydrolysis. The enriched organic layer obtained by extraction with ether was dried. After removing the solvent, the residue was purified by column chromatography to obtain Compound (G) (0.14 g, 56%) as a solid product.

[0215] Preparation of compound (H)

[0216] Under a nitrogen atmosphere, compound (G) (0.11 g, 0.44 mmol) and THF (5 ...

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Abstract

Provided are novel organic electroluminescent compounds, and organic electroluminescent devices and organic solar cells employing the same. Specifically, the organic electroluminescent compounds according to the invention are characterized in that they are represented by Chemical Formula (1) : wherein, A, B, C and D independently represent CR 5 or N, provided that A, B, C and D cannot represent CR5 all at the same time. Since the organic electroluminescent compounds according to the invention have good luminous efficiency and excellent color purity and life property of material, OLED's havingvery good operation life can be manufactured therefrom.

Description

technical field [0001] The present invention relates to novel organic electroluminescent compounds and organic electroluminescent devices using the compounds in the electroluminescent layer. More specifically, it relates to novel organic electroluminescent compounds as green or blue electroluminescent materials, and organic electroluminescent devices using them as hosts. Background technique [0002] Full-color OLED displays are achieved using three electroluminescent materials (red, green, and blue). To improve the overall characteristics of organic electroluminescent (EL) devices, the most important point of view is to develop red, green and blue electroluminescent materials with high efficiency and long lifetime. EL materials are classified into host materials and dopant materials according to their functions. It is well known that the preparation of the EL layer using a dopant-containing host material results in a device structure with optimal EL characteristics. Rece...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D221/08C07F7/10C07D405/14C07D409/14C07D401/14C07D519/00C07D417/14C07D413/14C07D401/04C07D405/04C07D409/04C07D471/04C07D417/10C07D401/10C07D221/18C09K11/06H01L51/50H01L51/54H01L51/42H01L51/46
CPCC09K2211/1011C09K2211/1029C09K2211/1092C09K2211/104Y10S428/917C09K2211/1037C09K2211/1096C09K11/06C09K2211/1033C09K2211/1007C09K2211/1088C09K2211/1059Y02E10/50C09K2211/1044Y02E10/549
Inventor 阴盛镇赵英俊权赫柱金奉玉金圣珉尹胜洙
Owner GRACEL DISPLAY INC
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