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General formula compound and application thereof

A compound of general formula, selected technology, applied in the field of organic electroluminescent devices

Inactive Publication Date: 2019-09-24
BEIJING ETERNAL MATERIAL TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the shortcomings of traditional host materials in the above prior art, the present invention provides a new class of compounds for organic electroluminescent devices

Method used

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  • General formula compound and application thereof
  • General formula compound and application thereof
  • General formula compound and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example 1

[0042] Synthesis Example 1: Synthesis of Compound A2

[0043]

[0044] Under nitrogen protection, add 25.6 g (100 mmol) of indolo(3,2-A) carbazole and 38.2 g (110 mmol) of 4-(4-bromophenyl)-9,9-dimethylfluorene into the reaction flask, PD 2 (dba) 3 0.9g (0.785mmol, 0.5%), xylene 1500mL, sodium tert-butoxide 43.3g (314mmol), heated to reflux for 12h. After the reaction is complete, stop the reaction. Cool to room temperature, wash with water, concentrate the organic phase, and purify the obtained solid by recrystallization from toluene to obtain white powder M1.

[0045] Nitrogen protection, in the reaction flask, add intermediate M1 10.4g (20mmol), 4-bromobiphenyl 26.2g (110mmol), Pd2 (dba) 30.9g (0.785mmol, 0.5%), xylene 1500mL, sodium tert-butoxide 43.3g (314mmol), heated to reflux for 12h. After the reaction is complete, stop the reaction. Cool to room temperature, wash with water, concentrate the organic phase, and purify the obtained solid by recrystallization fr...

Synthetic example 2

[0046] Synthesis Example 2: Synthesis of Compound A13

[0047]

[0048] Under nitrogen protection, add 25.6 g (100 mmol) of indolo(3,2-A) carbazole and 38.2 g (110 mmol) of 4-(4-bromophenyl)-9,9-dimethylfluorene into the reaction flask, PD 2 (dba) 3 0.9g (0.785mmol, 0.5%), xylene 1500mL, sodium tert-butoxide 43.3g (314mmol), heated to reflux for 12h. After the reaction is complete, stop the reaction. Cool to room temperature, wash with water, concentrate the organic phase, and purify the obtained solid by recrystallization from toluene to obtain white powder M1.

[0049] Nitrogen protection, in the reaction flask, add 10.4g (20mmol) of intermediate M1, 34.6g (110mmol) of 4-bromophenyldiphenylamine, Pd 2 (dba) 3 0.9g (0.785mmol, 0.5%), xylene 1500mL, sodium tert-butoxide 43.3g (314mmol), heated to reflux for 12h. After the reaction is complete, stop the reaction. Cool to room temperature, wash with water, concentrate the organic phase, and purify the obtained solid ...

Synthetic example 3

[0050] Synthesis Example 3: Synthesis of Compound A39

[0051]

[0052] Nitrogen protection, in the reaction bottle, add indolo (3,2-A) carbazole 25.6g (100mmol), 2-chloro-4,6-diphenyltriazine 29.4g (110mmol), Pd 2 (dba) 3 0.9g (0.785mmol, 0.5%), xylene 1500mL, sodium tert-butoxide 43.3g (314mmol), heated to reflux for 12h. After the reaction is complete, stop the reaction. Cool to room temperature, wash with water, concentrate the organic phase, and purify the obtained solid by recrystallization from toluene to obtain white powder M1.

[0053] Nitrogen protection, in the reaction flask, add 10.4g (20mmol) of intermediate M1, 34.6g (110mmol) of 4(3-bromophenyl)-9,9-dimethylfluorene, Pd 2 (dba) 3 0.9g (0.785mmol, 0.5%), xylene 1500mL, sodium tert-butoxide 43.3g (314mmol), heated to reflux for 12h. After the reaction is complete, stop the reaction. Cool to room temperature, wash with water, concentrate the organic phase, and purify the obtained solid by recrystallizat...

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Abstract

The invention discloses a general formula compound of formula (I) shown in the description. In the formula (I), X<1> to X<10> are respectively independently selected from CR<3> or N, at least one of A and B is selected from a structure represented by formula (II) shown in the description, and the remaining one is an arylene group or a fused arylene group, a heterocyclic arylene group or a fused heterocyclic arylene group; and in the formula (II), L<1> is selected from an arylene group and a heterocyclic arylene group, and R<1>, R<2> and R<3> are respectively independently selected from hydrogen, an alkyl group, an aryl or fused aryl group and a heteroaryl or fused heteroaryl group. The compound of the present invention has excellent device properties and stability when used as a host material in the light-emitting layer of an OLED. The present invention also discloses an organic light-emitting device adopting the general formula compound.

Description

technical field [0001] The invention relates to the field of organic electroluminescent materials, in particular to a novel general formula compound and an organic electroluminescent device using the general formula compound. 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] With the continuous advancement of OLED technology in the two major fields of lighting and...

Claims

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Application Information

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IPC IPC(8): C07D471/14C07D471/22C07D487/04C07D519/00C09K11/06H01L51/50H01L51/54
CPCC07D471/14C07D471/22C07D487/04C07D519/00C09K11/06C09K2211/1029C09K2211/1044C09K2211/1088C09K2211/1092C09K2211/1059C09K2211/1007C09K2211/1011C09K2211/1014H10K85/615H10K85/633H10K85/654H10K85/6576H10K85/6572H10K85/6574H10K50/00
Inventor 邢其锋李之洋杜倩
Owner BEIJING ETERNAL MATERIAL TECH
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