We report here a two-in-one strategy for the Pd(II)-catalyzed tandem C–H arylation/decarboxylative annulation between readily available cyclic diaryliodoniumsalts and benzoic acids. The carboxylic acid functionality can be used as both a directing group for the ortho-C–H arylation and the reactive group for the tandem decarboxylative annulation. By a step-economical double cross-coupling annulation
Pd-catalyzed C-H annulation reactions of halo- and aryl-heteroarenes were developed using readily available o-bromobiaryls and o-dibromoaryls, respectively. A variety of five-membered heteroarenes rapidly provided the corresponding phenanthrene-fused heteroarenes, which led to the identification of phenanthro-pyrazole and thiazole as new, stable -2 V redox couples. The flexible syntheses and tunability
COMPOSITION AND ORGANIC LIGHT-EMITTING DEVICE INCLUDING THE SAME
申请人:Samsung Electronics Co., Ltd.
公开号:US20210009616A1
公开(公告)日:2021-01-14
A composition including a platinum-containing organometallic compound, a first compound, a second compound, and a third compound, and an organic light-emitting device including the same wherein the composition does not comprise iridium,
the Pt-containing organometallic compound, the first compound, the second compound, and the third compound are different from each other,
the first compound comprises at least one electron transport moiety,
the second compound and the third compound do not include a metal,
each of an absolute value of a HOMO energy level of the second compound and an absolute value of a HOMO energy level of the third compound is 5.30 eV to 5.85 eV,
the difference between the absolute value of the HOMO energy level of the second compound and the absolute value of the HOMO energy level of the third compound is 0.01 eV to 0.30 eV.
[EN] PHENANTHRO[9,10-B]FURANS FOR ELECTRONIC APPLICATIONS<br/>[FR] PHÉNANTHRO[9,10-B]FURANES POUR APPLICATIONS ÉLECTRONIQUES
申请人:BASF SE
公开号:WO2012045710A1
公开(公告)日:2012-04-12
The present invention relates to an electronic device, especially an electroluminescent de¬ vices, comprising a compound of the formula (I), especially as host for phosphorescent compounds. The hosts may function with phosphorescent materials to provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices.
PHENANTHRO[9, 10-B]FURANS FOR ELECTRONIC APPLICATIONS
申请人:Schaefer Thomas
公开号:US20120095222A1
公开(公告)日:2012-04-19
The present invention relates to an electronic device, especially an electroluminescent devices, comprising a compound of the formula
especially as host for phosphorescent compounds. The hosts may function with phosphorescent materials to provide improved efficiency, stability, manufacturability, or spectral characteristics of electroluminescent devices.