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A kind of organic compound and organic electroluminescent device

An organic compound, electroluminescence technology, applied in the fields of organic chemistry, electro-solid devices, luminescent materials, etc., can solve the problems of backwardness and insufficient development of organic electroluminescent materials, avoid reverse transfer, improve chemical stability and thermal stability. The effect of improving stability, efficiency and life

Active Publication Date: 2021-08-10
NANJING TOPTO MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] As far as the actual needs of the current organic electroluminescent industry are concerned, the development of organic electroluminescent materials is far from enough, far behind the requirements of panel manufacturers

Method used

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  • A kind of organic compound and organic electroluminescent device
  • A kind of organic compound and organic electroluminescent device
  • A kind of organic compound and organic electroluminescent device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0074]

[0075] The synthetic method of compound 2 is as follows:

[0076]

[0077] Under nitrogen protection, compound 1-a (1.1eq, 9.5g, 375.28g / mol, 25.41mmol) and compound 1-b (1eq, 10g, 432.90g / mol, 23.10mmol) were dissolved in 200mL toluene, and acetic acid was added Palladium (0.26g, 224.51g / mol, 1.16mmol), X-phos (0.26g, 476.72g / mol, 1.16mmol), potassium carbonate (9.58g, 138.21g / mol, 69.3mmol), then add 100mL ethanol and 50mL of water was stirred overnight at 82°C, and the reaction progress was monitored by HPLC.

[0078] After the complete reaction of compound 1-b was monitored by HPLC, the reaction was stopped, the reaction solution was cooled to room temperature, 60 mL of water was added, stirred for 20 min, and the filter cake was obtained by suction filtration. The filter cake was rinsed twice with water and ethanol and then dried in vacuum at 80°C for 6 hours. Add the dried filter cake to a 250mL three-necked flask, add 100mL of o-dichlorobenzene, and heat...

Embodiment 2

[0080]

[0081] The synthetic method of compound 5 is as follows:

[0082]

[0083] The preparation method is basically the same as in Example 1, the difference is that compound 1-a is replaced by compound 2-a to obtain the final target product compound 5 (9.2g, yield 61.3%), ESI-MS (m / z) (M+ ): theoretical value 645.76, measured value 646.15, elemental analysis results (molecular formula C45H23D5N4O): theoretical value C, 83.70; H, 5.15; N, 8.68; O, 2.48; measured value C, 83.71; H, 5.14; N, 8.62; O, 2.53.

Embodiment 3

[0085]

[0086] The synthetic method of compound 6 is as follows:

[0087]

[0088] The preparation method is basically the same as in Example 1, the difference is that compound 1-a is replaced by compound 3-a, compound 1-b is replaced by compound 3-b, and the final target product compound 6 (9.7g, yield 65% ), ESI-MS (m / z) (M+): theoretical value 645.76, measured value 646.02, elemental analysis results (molecular formula C45H23D5N4O): theoretical value C, 83.70; H, 5.15; N, 8.68; O, 2.48; measured value C, 83.68; H, 5.17; N, 8.70; O, 2.45.

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Abstract

The invention discloses an organic compound and an organic electroluminescence device, which relates to the technical field of organic electroluminescence, and its structural formula is as follows: wherein, X is O or S; R1‑R3, R5‑R14, R18, R19 , R20 are the same or different, each independently selected from hydrogen, deuterium, substituted or unsubstituted C6-C20 aryl, substituted or unsubstituted C5-C20 heteroaryl; the compound of the present invention is applied to useful In the electroluminescent device, under the same current density, the luminous efficiency of the device has been greatly improved, the starting voltage has been reduced, the power consumption has been relatively reduced, and the life span has been increased accordingly.

Description

technical field [0001] The invention relates to the technical field of organic electroluminescence, in particular to an organic compound and an organic electroluminescence device. Background technique [0002] Organic Light-emitting Devices (OLEDs) are spontaneous light-emitting devices that utilize the following principle: when an electric field is applied, fluorescent substances emit light through the recombination of holes injected from the positive electrode and electrons injected from the negative electrode. This self-luminous device has the characteristics of low voltage, high brightness, wide viewing angle, fast response, good temperature adaptability, etc., and is ultra-thin, and can be fabricated on flexible panels. It is widely used in mobile phones, tablet computers, TVs, lighting, etc. and other fields. [0003] Compared with the crystal layer of LED (light-emitting diode) or LCD (liquid crystal display), the organic plastic layer of OLED is thinner, lighter and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D405/14C07D409/14C09K11/06H01L51/54
CPCC07D405/14C07D409/14C09K11/06C09K2211/1092C09K2211/1088C09K2211/1059H10K85/654H10K85/6576H10K85/6572
Inventor 钱超许军朱东林黄明辉
Owner NANJING TOPTO MATERIALS CO LTD
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