Compound containing benzophenanthrene benzofuran structure and organic electroluminescent device thereof

A compound, triphenylene technology, applied in the field of compounds containing triphenylenefuran structure and its organic electroluminescent devices, can solve the problems of backwardness and insufficient development of organic electroluminescent materials, etc., and achieve balanced transmission, good loading Flow carrier mobility, effect of reducing planarity

Active Publication Date: 2021-09-24
NANJING TOPTO MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] As far as the actual needs of the current organic electroluminescent industry are concerned, the develo...

Method used

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  • Compound containing benzophenanthrene benzofuran structure and organic electroluminescent device thereof
  • Compound containing benzophenanthrene benzofuran structure and organic electroluminescent device thereof
  • Compound containing benzophenanthrene benzofuran structure and organic electroluminescent device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046]

[0047] The synthetic method of compound 1 is as follows:

[0048]

[0049] Under nitrogen protection, compound 1-a (1.1eq, 9.36g, 368.23g / mol, 25.41mmol), compound 1-b (1eq, 10g, 432.9g / mol, 23.1mmol) 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), 100mL of ethanol and 50mL of water were added, and the reaction was stirred overnight at 100°C, and the reaction progress was monitored by HPLC.

[0050] After the complete reaction of compound 1-b was monitored by HPLC, stop the reaction, cool down at room temperature, add 30 mL of water, add 1 L of ethanol, stir for 30 minutes, the solid precipitated, suction filtered, and the filter cake was collected with 80 times the weight of o-dichlorobenzene through silica gel activated carbon. Crystallized to obtain the final target product Compound 1 (8.54g, yield 57.9%), ESI-MS (m / z) (M+): theoretical value 638.71, measured value 638...

Embodiment 2

[0052]

[0053] The synthetic method of compound 4 is as follows:

[0054]

[0055]The preparation method is basically the same as in Example 1, the difference is that compound 1-b is replaced by compound 2-b to obtain the final target product compound 4 (8.46g, yield 57.5%), ESI-MS (m / z) (M+ ): theoretical value 642.74, measured value 642.52, elemental analysis results (molecular formula C45H22N4O): theoretical value C, 84.09; H, 4.70; N, 8.72; O, 2.49; measured value C, 84.01; H, 4.78; N, 8.79; O, 2.42.

Embodiment 3

[0057]

[0058] The synthetic method of compound 8 is as follows:

[0059]

[0060] The preparation method is basically the same as in Example 1, the difference is that compound 1-b is replaced by compound 3-b to obtain the final target product compound 8 (8.85g, yield 60.2%), ESI-MS (m / z) (M+ ): theoretical value 643.74, measured value 642.95, elemental analysis results (molecular formula C45H21N4O): theoretical value C, 83.96; H, 4.85; N, 8.70; O, 2.49; measured value C, 83.90; H, 4.81; N, 8.76; O, 2.53.

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Abstract

The invention discloses a compound containing a benzophenanthrene benzofuran structure and an organic electroluminescent device thereof, and relates to the technical field of organic electroluminescence. The compound containing a benzophenanthrene-benzofuran structure has a structural formula shown in the specification, wherein L is a deuterated or non-deuterated C6-C12 aryl group, Ar1 is a deuterated or non-deuterated C6-C20 heteroaryl group, and Ar2 is a deuterated or non-deuterated phenyl group. When the compound is applied to the organic electroluminescent device, under the same current density, the luminous efficiency of the device is greatly improved, the starting voltage is reduced, the power consumption is relatively reduced, and the service life is correspondingly prolonged.

Description

technical field [0001] The invention relates to the technical field of organic electroluminescence, in particular to a compound containing a triphenylene-furan structure and an organic electroluminescence device thereof. Background technique [0002] Organic light-emitting devices (Organic Light-emitting Devices, OLED) are spontaneous light-emitting devices using 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] The organic electroluminescent device is like a sandwich structure, including electrode...

Claims

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Application Information

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IPC IPC(8): C07D209/86C07D209/88C07D405/14C09K11/06H01L51/54H01L51/50
CPCC07D405/14C07D209/88C07D209/86C09K11/06C09K2211/1029C09K2211/1088C09K2211/1059C09K2211/1011H10K85/615H10K85/622H10K85/654H10K85/6574H10K85/6572H10K50/12Y02E10/549
Inventor 钱超许军朱东林黄明辉
Owner NANJING TOPTO MATERIALS CO LTD
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