Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Ni derivative, material comprising same and organic electroluminescent device

A technology of electroluminescent devices and organic light-emitting layers, which is applied in the direction of electric solid-state devices, organic chemistry, and luminescent materials. High thermal stability, the effect of a simple method

Active Publication Date: 2021-06-29
SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] So far, many blue-light materials have been reported in the literature, and the structures of these materials can be roughly classified into anthracene derivatives, stilbene aromatic derivatives, pyrene derivatives, fluorene and spirofluorene, among which anthracene Derivatives such as 9,10-diphenylanthracene (DPA) and 9,10-bis(2-naphthyl)anthracene (ADN) are the progenitor materials used in organic electroluminescent components, although they have high fluorescence quantum efficiency and Good stability and other advantages, but its unstable film is one of the important reasons for accelerating device degradation and causing poor device life

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ni derivative, material comprising same and organic electroluminescent device
  • Ni derivative, material comprising same and organic electroluminescent device
  • Ni derivative, material comprising same and organic electroluminescent device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] Embodiment 1, the preparation of compound formula A-1

[0089] The first step, 11-(4-bromophenyl)-3-chloro The preparation, preparation route is as follows:

[0090]

[0091] The specific operation process of preparation:

[0092] 20.0g (0.07mol) of raw material SM-0 was dissolved in 360ml of anhydrous dichloromethane, cooled to 0°C in an ice-salt bath, 13.5g (46.8mmol) of raw material SM-1 was added, and 11.2g (74.9mmol) of SM-1 was slowly added dropwise. ) of trifluoromethanesulfonic acid dissolved in dichloromethane, stirred for 1 hour, heated to 30 ° C, stirred for 18 hours, concentrated under reduced pressure to dryness, separated and purified with silica gel column, concentrated under reduced pressure to dryness, and obtained 13.2 g of white Solid, yield 45%.

[0093] The second step, the preparation of 2-bromo-4,4'-dibromomethylene biphenyl, the preparation route is as follows:

[0094]

[0095] The specific operation process of preparation:

[0096] ...

Embodiment 2

[0100] Embodiment 2, the preparation of compound formula A-17

[0101] The first step, intermediate 2,9-dichloro-5-(1-naphthyl) The preparation, preparation route is as follows:

[0102]

[0103] The specific operation process of preparation:

[0104] Referring to the preparation method in the first step of Example 1, SM-1 in the first step of Example 1 was replaced with SM-4 to obtain the intermediate Int.-2, a white solid, with a yield of 38%.

[0105] The second step, the preparation of compound formula A-17, the preparation route is as follows:

[0106]

[0107] The specific operation process of preparation:

[0108] The palladium catalyst Pd(PPh 3 ) 4 And the sodium carbonate of 10g (94.3mmol), then add the toluene of 60ml, the ethanol of 20ml and the water of 20ml, under the protection of nitrogen, heat up and reflux and stir reaction for 12 hours, cool to room temperature, extract with ethyl acetate, organic phase with Dry over sodium sulfate, filter, and c...

Embodiment 3

[0112] Embodiment 3, the preparation of compound formula A-33

[0113] The first step, intermediate 11-([1,1'-biphenyl]-2-yl)-2-chloro The preparation, preparation route is as follows:

[0114]

[0115] The specific operation process of preparation:

[0116] Referring to the preparation method of the first step of Example 1, SM-0 in the first step of Example 1 was replaced by SM-5, and SM-1 was replaced by SM-6 to obtain the intermediate Int.-3, a white solid, obtained as rate 47%.

[0117] The second step, the preparation of compound formula A-33, the preparation route is as follows:

[0118]

[0119] The specific operation process of preparation:

[0120] Referring to the preparation method of the second step of Example 2, replace Int.-2 in the second step of Example 2 with Int.-3, and replace phenylboronic acid with 2-phenylphenylboronic acid to obtain product A-33, a white solid , yield 88%.

[0121] Experimental data:

[0122] (1) 1 HNMR (δ, CDCl3): 9.06(d,...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a derivative, a material containing the derivative and an organic electroluminescent device. The structural formula of the derivative is shown in the following formula I: the derivative shown in the formula I provided by the present invention has dark blue fluorescence properties, overcomes the aggregation fluorescence quenching effect of fluorescent materials, and has a higher glass transition temperature, high thermal Stability and excellent luminous performance. Its synthesis process is simple, the purification method is simple and suitable for large-scale production, and the luminescence performance and thermal stability of the product can be adjusted by connecting different groups. It is an ideal choice as an organic light-emitting layer material for organic electroluminescent devices. . The OLED device using the above-mentioned fluorescent material has high fluorescent efficiency and good stability of the light-emitting layer, so that the light-emitting efficiency and service life of the device can meet the practical requirements.

Description

technical field [0001] The invention relates to the technical field of organic electroluminescence. More specifically, it involves derivatives, including the Derivative materials and organic electroluminescent devices. Background technique [0002] Organic electroluminescence (referred to as OLED) and related research As early as 1963, pope et al. first discovered the electroluminescence phenomenon of organic compound single crystal anthracene. In 1987, Kodak Corporation of the United States made an amorphous film device by evaporating organic small molecules, which reduced the driving voltage to less than 20V. This type of device is ultra-thin, fully cured, self-illuminating, high brightness, wide viewing angle, fast response, low driving voltage, low power consumption, bright color, high contrast, simple process, good temperature characteristics, and can realize flexible display And other advantages, can be widely used in flat panel displays and surface light sources...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C07C15/38C07C15/20C07C211/61C07C211/54C07C13/66C07C13/72C07D307/91C07D307/79C07C43/275C07C317/14C07D407/10C07D311/82C07D213/06C07D251/24C07D405/10C07D213/16C07D263/57C07D209/86C07D235/08C07D307/81C07D215/04C07D401/10C07D471/04C07D333/48C07D333/08C07D311/96C09K11/06H01L51/50H01L51/54
CPCC09K11/06C07C13/66C07C13/72C07C15/20C07C15/38C07C43/275C07C211/54C07C211/61C07C317/14C07D209/86C07D213/06C07D213/16C07D215/04C07D235/08C07D251/24C07D263/57C07D307/79C07D307/81C07D307/91C07D311/82C07D311/96C07D333/08C07D333/48C07D401/10C07D405/10C07D407/10C07D471/04C07C2603/97C07C2603/54C07C2603/24C07C2603/50C07C2603/26C07C2603/20C07C2603/48C07C2603/18C07B2200/05C09K2211/1059C09K2211/1044C09K2211/1033C09K2211/1029C09K2211/1014C09K2211/1011C09K2211/1007C09K2211/1092C09K2211/1088H10K85/622H10K85/624H10K85/633H10K85/655H10K85/631H10K85/654H10K85/6574H10K85/657H10K85/6572H10K50/11
Inventor 曹建华王士波张建川董梁隋岩唐永顺华瑞茂
Owner SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com