Dearomatizing [4+1] Spiroannulation of Naphthols: Discovery of Thermally Activated Delayed Fluorescent Materials
作者:Wenbo Liang、Yudong Yang、Mufan Yang、Min Zhang、Chengming Li、You Ran、Jingbo Lan、Zhengyang Bin、Jingsong You
DOI:10.1002/anie.202012842
日期:2021.2.15
Disclosed here is a palladium‐catalyzed direct [4+1] spiroannulation of ortho‐C−H bonds of naphthols with cyclic diaryliodoniumsalts to construct spirofluorenyl naphthalenones (SFNP) under mild reaction conditions. This spiroannulation directly transforms the hydroxy group into a carbonyl group, and also tolerates reactive functional groups such as the halo groups, which provide an opportunity to
ORGANIC ELECTROLUMINESCENCE DEVICE AND POLYCYCLIC COMPOUND FOR ORGANIC ELECTROLUMINESCENCE DEVICE
申请人:Samsung Display Co., LTD.
公开号:US20200283426A1
公开(公告)日:2020-09-10
An organic electroluminescence device includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region, wherein the hole transport region includes a polycyclic compound represented by Formula 1, thereby showing high emission efficiency.
[EN] DIBENZOXANTHENE COMPOUND, ORGANIC LIGHT-EMITTING DEVICE, DISPLAY, IMAGE INFORMATION PROCESSOR, AND IMAGE-FORMING APPARATUS<br/>[FR] COMPOSÉ DE DIBENZOXANTHÈNE, DISPOSITIF ÉLECTROLUMINESCENT ORGANIQUE, AFFICHAGE, PROCESSEUR DE DONNÉES D'IMAGES, ET APPAREIL FORMANT DES IMAGES
申请人:CANON KK
公开号:WO2014007186A1
公开(公告)日:2014-01-09
Provided is a novel compound having a high lowest triplet excited level (T1 level), a narrow bandgap, and a shallow highest occupied molecular orbital (HOMO) level. A dibenzoxanthene compound is represented by formula [1] described in Claim 1. In formula [1], R1 to R7 are each independently selected from the group consisting of hydrogen, alkyl groups, aryl groups, heterocyclic groups, aryloxy groups, alkoxy groups, amino groups, silyl groups, and cyano groups.
2-(phenyl or heterocyclic)-1H-phenantrho[9,10-d]imidazoles as mPGES-1 inhibitors
申请人:Chau Anh
公开号:US20090075998A1
公开(公告)日:2009-03-19
The invention encompasses novel compounds of Formula I
or pharmaceutically acceptable salts thereof. These compounds are inhibitors of the microsomal prostaglandin E synthase-1 (mPGES-1) enzyme and are therefore useful to treat pain and/or inflammation from a variety of diseases or conditions, such as osteoarthritis, rheumatoid arthritis and acute or chronic pain. Methods of treating diseases or conditions mediated by the mPGES-1 enzyme and pharmaceutical compositions are also encompassed.