Title:
BENZOPHENANTHRENE DERIVATIVE AND APPLICATION THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/088911
Kind Code:
A1
Abstract:
The present invention relates to a benzophenanthrene derivative and an application thereof. The structural formula of the benzophenanthrene derivative is represented by formula (I). The benzophenanthrene derivative set forth in the present invention is a novel organic electroluminescent compound having a fused ring structure of indole, benzofuran and benzothiophenobenzophenanthrene, and the intramolecular electron density is increased on the basis of benzophenanthrene. Meanwhile, substituent groups are adjusted to increase molecular steric hindrance and weaken the π-π interaction between molecules, the internal quantum efficiency of molecules is improved, and the light-emitting wavelength is shorter than that of existing compounds. Meanwhile, the benzophenanthrene derivative hinders the generation of an organic intermolecular excitation-excitation compound and increases internal electron density and stability; therefore, by using the the benzophenanthrene derivative of the present invention to prepare an organic electroluminescent device significantly improves the effect and service life thereof.
Inventors:
CAO JIANHUA (CN)
JIANG KUN (CN)
LI CHENGHUI (CN)
CHENG YOUWEN (CN)
WANG QINGYI (CN)
ZHAO JIA (CN)
WANG MEIYAN (CN)
SUN JIANBO (CN)
JIANG KUN (CN)
LI CHENGHUI (CN)
CHENG YOUWEN (CN)
WANG QINGYI (CN)
ZHAO JIA (CN)
WANG MEIYAN (CN)
SUN JIANBO (CN)
Application Number:
PCT/CN2021/115226
Publication Date:
May 05, 2022
Filing Date:
August 30, 2021
Export Citation:
Assignee:
BEIJING BAYI SPACE LIQUID CRYSTAL TECH CO LTD (CN)
International Classes:
C07C211/61; C07D493/04; C07D251/24; C07D311/94; C07D487/04; C07D487/06; C07D491/16; C07D493/06; C07D493/16; C07D495/04; C07D495/06; C07D495/16; C09K11/06; H01L51/50; H01L51/54
Domestic Patent References:
| WO2004083162A1 | 2004-09-30 |
Foreign References:
| CN112266387A | 2021-01-26 | |||
| US20160020408A1 | 2016-01-21 | |||
| CN110156824A | 2019-08-23 |
Other References:
DATABASE REGISTRY 7 October 2014 (2014-10-07), ANONYMOUS : "Benzo[a]benzo[1,2]carbazolo[3,4-c]carbazole (CA INDEX NAME) ", XP055926742, retrieved from STN Database accession no. 1628116-42-6
Attorney, Agent or Firm:
BEIJING CIPRUN INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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