A ligand-free copper catalyzed approach has been developed to the synthesis of 3,4,5-triaryl-1,2,4-triazoles and 2,5-diaryl-1,3,4-oxadiazoles by the direct arylation of corresponding 3,4-diaryl-1,2,4-triazoles and 2-aryl-1,3,4-oxadiazoles with aryl iodides using PEG-400 as reaction medium. The procedure is experimentally simple and free from addition of external chelating ligands or co-catalysts.
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.
Organic compound and organic electroluminescent element comprising same
申请人:DOOSAN CORPORATION
公开号:US10008675B2
公开(公告)日:2018-06-26
The present disclosure relates to a novel compound and an organic electroluminescent element including the same, and the compound according to the present disclosure is used for an organic material layer of the organic electroluminescent element, thereby improving the light emitting efficiency, driving voltage, lifetime, and the like of the organic electroluminescent element.