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Organic compound and electroluminescent device using same

An electroluminescent device, an organic compound technology, applied in the field of organic nitrogen heterocyclic derivatives and its application in the field of electroluminescent display technology, can solve the problems of unsatisfactory luminous efficiency, lifespan and optical purity , to achieve high carrier injection and transport capabilities, high brightness, and improved purity

Inactive Publication Date: 2014-09-17
BEIJING GREEN GUARDEE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the currently known OLED materials have greatly improved their performance compared to before, they have not yet achieved satisfactory luminous efficiency, lifetime and light purity.

Method used

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  • Organic compound and electroluminescent device using same
  • Organic compound and electroluminescent device using same
  • Organic compound and electroluminescent device using same

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] 1. The preparation of core compound A, its structural formula and synthetic route are as follows:

[0033]

[0034] (1) Synthesis of intermediate A-1:

[0035] At -78°C, add 12mL of n-BuLi (2.5mole / L, 0.03mole) dropwise to 6.16g (0.02mole) 3,5-diphenylbromobenzene and 150ml THF and keep warm for 30 minutes, then at -78°C 3.32 ml of trimethyl borate (0.03 mole) was added dropwise, and reacted for 2 hours after the addition was completed, to terminate the reaction. Then, 50 ml of water was added to the obtained reaction solution, stirred for 20 minutes, adjusted to acidity by adding hydrochloric acid, and stirred for 30 minutes. Then the above-mentioned reaction solution was extracted three times with ethyl acetate, the organic phases were combined and washed with water, the organic phase was separated, the organic liquid was spin-dried, and the obtained solid was boiled with petroleum ether to obtain 5.48 g of off-white solid. Body A-1, yield 50%.

[0036] (2) Synt...

Embodiment 1

[0078] Example 1 Preparation of Compound G1

[0079] The compound G1 to be prepared in this example has a structural formula and a synthetic route as follows:

[0080]

[0081] Preparation of Compound G1:

[0082] Mix 5.5g (0.01mole) of core compound A, 2.87g (0.01mole) of 9-phenylcarbazole-3-boronic acid, 4.15g (0.03mole) of potassium carbonate, 50ml of toluene, 30ml of ethanol and 30ml of water. 0.23 g (0.0002 mole) of tetrakis(triphenylphosphine) palladium was added, the temperature was raised to reflux overnight, and the reaction was stopped until the plate was monitored until the reaction was complete. The obtained reaction solution is spin-dried, and the solid obtained by spin-drying is added to 100ml of dichloromethane, passed through a silica gel column, the filtrate is added with 100ml of water, washed with water and separated to obtain an organic phase, and the organic phase is spin-dried and boiled with ethanol to obtain 5.2 g of white solid compound G1, yield ...

Embodiment 2

[0083] Example 2 Preparation of Compound G2

[0084] The compound G2 to be prepared in this example has a structural formula and a synthetic route as follows:

[0085]

[0086] Preparation of Intermediate G2-1:

[0087] Mix 1.69g (0.01mole) of 4-aminobiphenyl, 2.73g (0.01mole) of 2-bromo-9,9-dimethylfluorene and 50ml of toluene, and add 0.18g (0.0002mole) of Pd under nitrogen atmosphere 2 (dba) 3 , 1.68g (0.015mole) potassium tert-butoxide and 0.809g (0.0004mole, 10% toluene solution) tri-tert-butylphosphine, heated to 70 ° C, spot plate monitoring, after the reaction is complete, cool to room temperature, and then in the obtained reaction 100ml of toluene was added to the compound, and the filtrate was obtained through a silica gel funnel, and the filtrate was extracted with water to obtain an organic phase. After the organic phase was spin-dried, the solid obtained by spin-drying was recrystallized with an ethanol-toluene system to obtain 2.7 g of solid intermediate G2 ...

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Abstract

The invention discloses an organic compound. The organic compound has a structure represented by a formula I shown in descriptions, wherein R1 is substituted or unsubstituted C6-C30 aryl, substituted or unsubstituted C6-C30 aryloxy, phenyl, biphenyl, naphthyl or anthryl; R2 is independently selected from a monosubstituted or polysubstituted substituent, a hydrogen atom, substituted or unsubstituted C1-C30 alkyl, substituted or unsubstituted C1-C30 alkoxy, substituted or unsubstituted C6-C30 aryl, substituted or unsubstituted C6-C30 aryloxy, substituted or unsubstituted C6-C30 arylamino, a substituted or unsubstituted C2-C30 heterocycle, a substituted or unsubstituted C6-C30 fused polycyclic group, hydroxyl, cyan and substituted or unsubstituted amino. The invention further discloses an electroluminescent device using the organic compound.

Description

technical field [0001] The invention relates to an organic compound, in particular to an organic nitrogen heterocyclic derivative used in an organic electroluminescence device and its application in the technical field of electroluminescence display. Background technique [0002] Organic electroluminescence technology, or organic light-emitting diode technology, is seen as the next generation display technology. Compared with traditional liquid crystal (Liquid Crystal Display, LCD) technology, there is no need for backlight illumination and color filters, and pixels can emit light by themselves and appear on a color display panel. Moreover, it has the characteristics of ultra-high contrast, ultra-wide viewing angle, curved surface, and thin profile. [0003] Organic electroluminescent devices can be traced back to 1963 when Pope et al. studied blue electroluminescence with anthracene as a single crystal (10-20 μm). Because of the thick anthracene single crystal light-emitti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07D209/86C07D403/10C07D405/10C07D409/10C09K11/06H01L51/54
CPCC09K11/06C07D209/86C07D403/10C07D405/10C07D409/10C09K2211/1059C09K2211/1088C09K2211/1092C09K2211/1029H10K85/6576H10K85/6574H10K85/6572
Inventor 贾学艺吕瑶许军
Owner BEIJING GREEN GUARDEE TECH
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