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A kind of compound and organic electroluminescent device

A compound and luminescent technology, applied in the direction of electric solid-state devices, organic chemistry, luminescent materials, etc., can solve the problems of insufficient development of organic electroluminescent materials and backward panel manufacturing enterprises, so as to improve the service life and luminous efficiency, and improve the life span , Improve efficiency and stability

Active Publication Date: 2021-07-13
NANJING TOPTO MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] As far as the actual needs of the current organic electroluminescent industry are concerned, the development of organic electroluminescent materials is far from enough, lagging behind the requirements of panel manufacturers

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067]

[0068] The preparation method of compound 1 is as follows:

[0069]

[0070] Under nitrogen protection, compound 1-a (10g, 356.81g / mol, 28.03mmol), compound 1-b (1.1eq, 9.04g, 293.14g / mol, 30.83mmol) and sodium carbonate (2eq, 5.94g, 105.99 g / mol, 56.06mmol) was added to toluene (200ml), ethanol (100ml), water (100ml), stirred and mixed and then added tetrakis triphenylphosphine palladium (0.05eq, 1.62g, 1155.58g / mol, 1.4 mmol), warming up to reflux reaction for 10h, cooling to room temperature and adding water (100ml), stirring to separate the water phase, after the water phase was extracted with dichloromethane, after the organic phase was combined and dried with anhydrous sodium sulfate, the sample was mixed with silica gel column chromatography Purified to obtain compound 1 (12.79g, yield 80.1%), ESI-MS (m / z) (M+): theoretical value 569.66, measured value 570.19, elemental analysis results (molecular formula C39H19D5N4O): theoretical value C, 82.23; H N, 9....

Embodiment 2

[0075]

[0076] The preparation method of compound 2 is as follows:

[0077]

[0078] The preparation method is basically the same as in Example 1, the difference is that compound 1-a and compound 1-b are replaced by compound 2-a and compound 2-b respectively, and the reaction obtains compound 2 (yield 79.7%), ESI-MS (m / z)(M+): theoretical value 569.66, measured value 570.44, elemental analysis results (molecular formula C39H19D5N4O): theoretical value C, 82.23; H, 5.13; N, 9.84; O, 2.81; measured value C, 82.23; H, 5.13 ; N, 9.84; O, 2.81.

Embodiment 3

[0080]

[0081] The preparation method of compound 3 is as follows:

[0082]

[0083] The preparation method is basically the same as in Example 2, the difference is that compound 3-a is used to replace compound 2-a, and the reaction gives compound 3 (yield 80.5%), ESI-MS (m / z) (M+): theoretical value 572.68, The measured value is 572.81, and the elemental analysis result (molecular formula C39H16D8N4O): theoretical value C, 81.79; H, 5.63; N, 9.78; O, 2.79; measured value C, 81.79; H, 5.63; N, 9.78;

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Abstract

The invention discloses a compound and an organic electroluminescence device. Its structural formula is shown in Formula 1 below: Z1-Z3 is the same or different, each independently is CH or N, and Z1-Z3 is not CH at the same time; Ar1 ​​is phenyl or Deuterated phenyl; Y is O, Ar2 is C1-C4 straight chain or branched chain alkyl, C1-C4 deuterated straight chain or branched chain alkyl, C3-C10 cycloalkyl, C3-C10 deuterium Substituted cycloalkyl, C3-C6 cycloalkenyl, C3-C6 deuterated cycloalkenyl, phenyl, naphthyl, anthracenyl, phenanthrenyl, deuterated phenyl, deuterated naphthyl, deuterated anthracenyl, Deuterated phenanthrenyl, the compound of the present invention is used as the host material of the light-emitting layer, and is applied to the organic electroluminescent device. The service life of the prepared organic electroluminescent device is greatly improved, so it has a very broad application prospect .

Description

technical field [0001] The invention relates to the technical field of organic electroluminescence, in particular to a compound and an organic electroluminescence device. Background technique [0002] OLED is a kind of device that utilizes multi-layer organic thin film structure to generate electroluminescence. It is easy to manufacture and only requires low driving voltage. These main features make OLED very prominent in the application of flat-panel displays. OLED displays are thinner and thinner than LCDs, have high brightness, low power consumption, fast response, high definition, good flexibility, and high luminous efficiency, which can meet the new needs of consumers for display technology. More and more display manufacturers around the world have invested in research and development, which has greatly promoted the industrialization process of OLED. [0003] Currently, an OLED device consists of a substrate, cathode, anode, hole injection layer (HIL), electron injecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D405/14C09K11/06H01L51/50H01L51/54
CPCC07D405/14C09K11/06C09K2211/1029C09K2211/1059C09K2211/1088H10K85/615H10K85/6574H10K85/6572H10K50/11
Inventor 钱超许军
Owner NANJING TOPTO MATERIALS CO LTD
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