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Compound and organic electroluminescent device

A compound and group technology, applied in the field of compounds and organic electroluminescent devices, can solve the problems of backward panel manufacturing enterprises and insufficient development of organic electroluminescent materials, and achieve improved lifespan, improved lifespan and luminous efficiency, and improved efficiency. and stability effect

Active Publication Date: 2020-12-04
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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  • Compound and organic electroluminescent device
  • Compound and organic electroluminescent device
  • 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 electroluminescent device. The structural formula of the compound is shown as a formula 1 in the specification. In the formula, Z1 to Z3 are the sameor different and are each independently selected from CH and N, and Z1 to Z3 are not CH at the same time; Ar1 is a phenyl or deuterated phenyl group; Y is O; and Ar2 is a C1-C4 linear or branched alkyl group, a C1-C4 deuterated linear or branched alkyl group, a C3-C10 cycloalkyl group, a C3-C10 deuterated cycloalkyl group, a C3-C6 cycloalkenyl group, a C3-C6 deuterated cycloalkenyl group, a phenylgroup, a naphthyl group, an anthryl group, a phenanthryl group, a deuterated phenyl group, a deuterated naphthyl group, a deuterated anthrylgroup, or a deuterated phenanthryl group. The compound of the invention is used as a host material of a luminescent layer to the organic electroluminescent device; and the service life of the prepared organic electroluminescent device is greatly prolonged, sothe organic electroluminescent material has very wide application prospects.

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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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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