Triarylamine-based compound and preparation method thereof, and applications of triarylamine-based compound in organic electroluminescent devices

An electroluminescent device, triarylamine technology, applied in the fields of electro-solid devices, chemical instruments and methods, electrical components, etc., can solve problems such as different problems, reduce cross-color phenomenon, good film-forming properties, and good industrialization prospects Effect

Active Publication Date: 2019-04-30
JIANGSU SUNERA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Triarylamine-based compound and preparation method thereof, and applications of triarylamine-based compound in organic electroluminescent devices
  • Triarylamine-based compound and preparation method thereof, and applications of triarylamine-based compound in organic electroluminescent devices
  • Triarylamine-based compound and preparation method thereof, and applications of triarylamine-based compound in organic electroluminescent devices

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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 present invention relates to a triarylamine-based compound and a preparation method thereof, and applications of the triarylamine-based compound in organic electroluminescent devices, wherein thecompound has a structure represented by a general formula (1), and further has characteristics of high glass transition temperature, good stability, good hole transport ability, high triplet energy level and wide energy gap. According to the present invention, with the application of the compound as the hole transporting or light-emitting layer material in the production of OLED light-emitting devices, the good performances of devices can be achieved, the current efficiency, the power efficiency and the external quantum efficiency of devices are greatly improved, and the service life of the OLED device can be greatly improved; and the triarylamine-based compound has good performance in the OLED device so as to achieve good industrialization prospect. The formula 1 is defined in the specification.

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 Applications(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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