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Organic luminescent material and application thereof

A luminescent material and organic technology, applied in luminescent materials, organic chemistry, electrical components, etc., can solve problems such as easy breakage, and achieve the effects of increasing service life, improving luminous efficiency, and good thermal stability

Active Publication Date: 2015-06-03
GUAN ETERNAL MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The C-N bond of the triarylamine structure in the above patent documents is easy to break

Method used

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  • Organic luminescent material and application thereof
  • Organic luminescent material and application thereof
  • Organic luminescent material and application thereof

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0055] For the preparation embodiment of the intermediate of the present invention:

[0056] Synthesis of Main Intermediate Naphthalene-2,5-Diboronic Acid

[0057]

[0058] Dissolve 5.7g of 2,6-dibromonaphthalene (molecular weight 284, 0.02mol) in 100ml of dry THF, add 20ml of n-butyl (2.5M, 0.05mol) dropwise at -80°C, stir for 15min, then add dropwise Triisopropyl borate 30ml. Hydrolyze, adjust the pH to neutral, and precipitate 4.35 g of white boric acid derivatives, with a yield of nearly 100%.

Embodiment 2

[0059] Synthesis of compound shown in embodiment 2 formula (5)

[0060] Step S1,

[0061]

[0062] 1000 ml one-necked bottle, equipped with a magnetic stirrer, add 4.35 g of naphthalene-2,6 diboronic acid (molecular weight 216, 0.02 mol), 11.4 g of 2,4-dibromonitrobenzene (molecular weight 278, 0.041 mol), Pd (PPh 3 ) 4 Use amount 2.6g (molecular weight 1154, 0.00253mol), sodium carbonate 150ml (2M), toluene 150ml, ethanol 150ml. After argon replacement, reflux, and monitor the reaction with TLC, the reaction was complete after 3 hours, lowered the temperature, separated the base layer, evaporated to dryness, and carried out column separation with ethyl acetate / petroleum ether to obtain 9.75g product, molecular weight 526, yield 92.5 %.

[0063] Step S2,

[0064]

[0065] In a 50 ml bottle equipped with a magnetic stirrer, add 9.75 g of the final product of the first step (molecular weight 526, 0.0185 mol), 10.4 g of triphenylphosphine (molecular weight 262, 0.0395 m...

Embodiment 3

[0073] Synthesis of compound shown in embodiment 3 formula (6)

[0074] The synthesis steps are the same as the four-step reaction in Example 2, except that in step S3, iodobenzene is changed to 2-iodonaphthalene to obtain compound 2.

[0075] Product MS (m / e): 710, elemental analysis (C 54 h 34 N 2 ): theoretical value C: 91.24%, H: 4.82%, N: 3.94%; measured value C: 91.27%, H: 4.80%, N: 3.93%, the nuclear magnetic spectrum of the compound ( 1 HNMR) see attached figure 1 .

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Abstract

The invention relates to an organic luminescent material shown in formula (I), wherein Ar1-Ar10 are respectively chosen from one of H, C6-C30 aromatic hydrocarbon group, C6-C30 polycyclic aromatic hydrocarbon group or substituted polycyclic aromatic hydrocarbon group, fused heterocyclic group or substituted fused heterocyclic group, five-membered heterocycle, six-membered heterocycle, triarylated amine group, aromatic ether group or C1-C20 aliphatic alkyl group, and Ar1, Ar2, Ar6 and Ar7 are not the hydrogen at the same time; Ar3 and Ar8 are not the hydrogen at the same time. The new material provided by the invention is well applied by being used as a hole-transport material in a red light apparatus. By using the material, the lightening voltage of the apparatus is reduced, the luminous efficiency of the apparatus is increased and the service life of the apparatus is prolonged.

Description

technical field [0001] The invention relates to a novel organic luminescent material, in particular to a compound used in an organic electroluminescent device and its application in the organic electroluminescent device. Background technique [0002] Organic electroluminescent display (hereinafter referred to as OLED) has a series of advantages such as self-luminescence, low-voltage DC drive, full curing, wide viewing angle, light weight, simple composition and process, etc. Compared with liquid crystal display, organic electroluminescent display is not It needs a backlight source, has a large viewing angle, low power, and its response speed can reach 1000 times that of a liquid crystal display, but its manufacturing cost is lower than that of a liquid crystal display with the same resolution. Therefore, organic electroluminescent devices have broad application prospects. [0003] The generation of organic electroluminescence relies on the recombination of carriers (electron...

Claims

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Application Information

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IPC IPC(8): C09K11/06C07D487/04H01L51/54
Inventor 李银奎李艳蕊范洪涛
Owner GUAN ETERNAL MATERIAL TECH
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