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Compound for organic luminescence and application thereof

A compound and organic technology, applied in the field of organic light-emitting compounds, can solve problems such as insufficient development, and achieve the effects of high charge transfer ability, high glass transition temperature, and high stability

Inactive Publication Date: 2022-03-29
EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order for organic light-emitting devices to have sufficiently excellent characteristics, materials forming organic material layers, such as hole injection materials, hole transport materials, light emitting materials, electron transport materials, electron injection materials, etc., first need to be supported by stable and effective materials , however, the current development of stable and efficient materials for organic material layers of organic light-emitting devices is still insufficient

Method used

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  • Compound for organic luminescence and application thereof
  • Compound for organic luminescence and application thereof
  • Compound for organic luminescence and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The first aspect of this embodiment is to provide a compound for organic luminescence, the structure of which is shown in Formula A:

[0026]

[0027] The second aspect of this embodiment is to provide a kind of synthetic method of above-mentioned compound:

[0028]

[0029]

[0030] Step (a): 40mmol compound 1, 47mmol diboronic acid pinacol ester and 118mmol potassium acetate were dissolved in 150mL dioxane, the mixture was heated to 50°C, and 0.4mmol Pd(DBA) 2 and 0.8mmol P(Cy) 3 This was added and the resulting mixture was heated with stirring for 12 hours. The reaction solution was cooled to room temperature, 100 mL of distilled water was added thereto, and the mixture was extracted with dichloromethane, and the organic layer was concentrated and recrystallized with ethanol to obtain compound 2.

[0031] Step (b): Suspend 99.95 mmol of compound 3 and 99.98 mmol of compound 4 in 200 mL of 1,4-dioxane and 20 mL of acetic acid. The resulting mixture was sti...

Embodiment 2

[0035] This embodiment provides a compound for organic luminescence, the structure of which is shown in formula B:

[0036]

[0037] The synthesis method of this compound is the same as that of Example 1, except that the substituents in the raw materials are replaced accordingly.

[0038] The yield of compound B was 84%. Characterization data: melting point (DSC) 284°C, purity 99.9%; 1 H NMR (400MHz, CDCl 3 )δ(ppm): 9.20(s,1H),8.11-7.91(m,5H),7.78-7.48(m,7H), 7.39-7.30(m,15H),7.22-7.00(m,6H),6.62 -6.46(m,4H).

Embodiment 3

[0040] This embodiment provides a compound for organic luminescence, the structure of which is shown in formula C:

[0041]

[0042] The synthesis method of this compound is the same as that of Example 1, except that the substituents in the raw materials are replaced accordingly.

[0043] The yield of compound C was 79%. Characterization data: melting point (DSC) 284°C, purity 99.9%; 1 H NMR (400MHz, CDCl 3 )δ(ppm): 8.81-8.51(m,2H),8.29(s,1H),8.00-7.91(m,5H), 7.48-7.39(m,10H),7.32-7.22(m,10H),7.01 -6.46(m,7H),3.89-1.51(m,5H).

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Abstract

The invention relates to a compound for organic luminescence, the structure of the compound is shown as a formula (I): wherein R1-R5 are respectively and independently selected from hydrogen, a substituted or unsubstituted aryl group, a substituted or unsubstituted heteroaryl group, and a substituted or unsubstituted alkyl group; l is selected from substituted or unsubstituted phenyl and substituted or unsubstituted heteroaryl. The compound for organic light emission can be used as an electron transport material, and not only has high stability, but also has high charge transfer capability and high glass transition temperature.

Description

technical field [0001] The invention relates to the field of photoelectric materials, in particular to a compound for organic light emission and its application. Background technique [0002] An organic electroluminescent element has a structure in which a light-emitting layer containing a light-emitting material is sandwiched between a hole-transport layer and an electron-transport layer, and an anode and a cathode are installed on both sides of the sandwich structure. Organic electroluminescence devices are devices that emit light (fluorescence or phosphorescence) when excitons are deactivated by the recombination of holes and electrons injected into the light-emitting layer, and are used in displays and the like. [0003] In order for organic light-emitting devices to have sufficiently excellent characteristics, materials forming organic material layers, such as hole injection materials, hole transport materials, light emitting materials, electron transport materials, ele...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D487/04C09K11/06H01L51/50H01L51/54
CPCC07D487/04C09K11/06C09K2211/1029C09K2211/1059H10K85/615H10K85/654H10K85/6572H10K50/16
Inventor 黄雪明
Owner EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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