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A kind of triarylamine compound, its preparation method and its application in organic electroluminescent device

An electroluminescent device, a technology of triarylamine, applied in the direction of electric solid-state devices, chemical instruments and methods, organic chemistry, etc., can solve different problems, reduce cross-color phenomenon, reduce leakage current, and have a good industrialization prospect Effect

Active Publication Date: 2022-03-29
JIANGSU SUNERA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, for the collocation of OLED devices with different structures, the photoelectric functional materials used have strong selectivity, and the performance of the same material in OLED devices with different structures may be completely different.

Method used

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  • A kind of triarylamine compound, its preparation method and its application in organic electroluminescent device
  • A kind of triarylamine compound, its preparation method and its application in organic electroluminescent device
  • A kind of triarylamine compound, its preparation method and its application in organic electroluminescent device

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Experimental program
Comparison scheme
Effect test

Embodiment 1 3

[0046] The preparation of embodiment 1 triaromatic amine compound

Embodiment 1-1

[0047] Embodiment 1-1: Preparation of compound 1

[0048] The chemical reaction equation that takes place in the preparation process of compound 1 is as follows:

[0049]

[0050] Concrete preparation steps are as follows:

[0051] (1) Preparation of intermediate 1

[0052] 10mmol 4-(1-naphthyl)aniline (2.2g), 10mmol 1-bromopyrene (2.8g), 20mmol sodium tert-butoxide (2.0g), 0.1mmol Pd 2 (dba) 3 (0.1g) and 50ml of toluene were added to the reaction flask in turn, refluxed for 10h under nitrogen protection, cooled to room temperature, added 100ml of water, separated, the aqueous layer was extracted with ethyl acetate and combined with the organic layer, and saturated saline and water were sequentially After washing, the organic layer was dried with magnesium sulfate, filtered, the filtrate was rotary evaporated, and passed through a silica gel column to obtain Intermediate 1 with a HPLC purity of 99.5%;

[0053] (2) Preparation of compound 1

[0054] 10mmol of the above ...

Embodiment 1-2

[0055] Embodiment 1-2: Preparation of Compound 2

[0056] The chemical reaction equation that takes place in the preparation process of compound 2 is as follows:

[0057]

[0058] Concrete preparation steps are as follows:

[0059] (1) Preparation of intermediate 2

[0060] 10mmol 4-(2-naphthyl)aniline (2.2g), 10mmol 1-bromopyrene (2.8g), 20mmol sodium tert-butoxide (2.0g), 0.1mmol Pd 2 (dba) 3 (0.1g) and 50ml of toluene were added to the reaction flask in turn, refluxed for 10h under nitrogen protection, cooled to room temperature, added 100ml of water, separated, the aqueous layer was extracted with ethyl acetate and combined with the organic layer, and saturated saline and water were sequentially After washing, the organic layer was dried with magnesium sulfate, filtered, the filtrate was rotary evaporated, and passed through a silica gel column to obtain intermediate 2 with a HPLC purity of 99.4%;

[0061] (2) Preparation of compound 2

[0062] 10mmol of the above ...

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Abstract

The invention relates to a triarylamine compound, its preparation method and its application in organic electroluminescent devices. The structure of the compound is shown in the general formula (1). This type of compound has high glass transition temperature, good stability, good hole transport ability, high triplet energy level, and wide energy gap. The compound of the present invention is used as a hole transport or light-emitting layer material in the production of OLED light-emitting devices, which can obtain good device performance, and the current efficiency, power efficiency and external quantum efficiency of the device are greatly improved, and can also greatly improve the OLED device. life. In view of the good performance of the triarylamine compound provided by the invention in OLED devices, it has a good industrialization prospect.

Description

technical field [0001] The invention relates to the technical field of photoelectric materials, in particular to a triarylamine compound, its preparation method and its application in organic electroluminescent devices. Background technique [0002] Compared with Liquid Crystal Display (LCD), Organic Light Emission Diodes (OLED) devices not only have low driving voltage, high luminous brightness, high luminous efficiency, wide luminous viewing angle, fast response speed, but also have ultra-thin , Can be made on a flexible panel and so on. At present, research on improving the performance of OLED devices includes: reducing the driving voltage of the device, improving the luminous efficiency of the device, and increasing the service life of the device. In order to continuously improve the performance of OLED devices, it is not only necessary to innovate in the structure and manufacturing process of OLED devices, but also to continuously research and innovate in OLED photoele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C211/61C07D307/91C07D333/76C07D209/88C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07C211/61C07D209/88C07D307/91C07D333/76C09K2211/1014C09K2211/1011C09K2211/1007C09K2211/1029C09K2211/1092C09K2211/1088H10K85/623H10K85/622H10K85/626H10K85/633H10K85/615H10K85/6576H10K85/6574H10K85/6572H10K50/00
Inventor 于凯朝李崇张兆超张小庆
Owner JIANGSU SUNERA TECH CO LTD
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