Novel iridium complexes containing phenylpyridine and pyridyl aza-benzo fused ligands are described. These complexes are useful as light emitters when incorporated into OLEDs.
Novel iridium complexes containing phenylpyridine and pyridyl aza-benzo fused ligands are described. These complexes are useful as light emitters when incorporated into OLEDs.
Aluminum chelate complex compounds with two substituted 8-hydroxyquinoline ligand and one dibenzothiophene, dibenzofuran or dibenzoselenophene ligands or aza-analogs of these molecules, attached directly or through an aromatic spacer to the oxygen atom is provided to improve lifetime, operating voltage and efficiency of an OLED. Additional substitution of dibenzothiophene or dibenzofuran ring may also provide charge delocalization, HOMO modification and higher Tg.
Synthesis of Benzofuropyridines and Dibenzofurans by a Metalation/Negishi Cross-Coupling/S<sub>N</sub>Ar Reaction Sequence
作者:Guy J. Clarkson、Stefan Roesner
DOI:10.1021/acs.joc.2c02111
日期:2023.1.6
methodology for the synthesis of benzofuropyridines and dibenzofurans from fluoropyridines or fluoroarenes and 2-bromophenyl acetates is reported. This streamlined one-pot procedure consists of a four-step directed ortho-lithiation, zincation, Negishi cross-coupling, and intramolecular nucleophilic aromatic substitution, allowing for the facile assembly of a diverse set of fused benzofuro heterocycles.
A FIRST DEVICE COMPRISING IRIDIUM COMPLEXES WITH AZA-BENZO FUSED LIGANDS
申请人:Universal Display Corporation
公开号:EP3000816A1
公开(公告)日:2016-03-30
Devices including novel iridium complexes containing phenylpyridine and pyridyl azabenzo fused ligands are described. These complexes are useful as light emitters when incorporated into OLEDs.