Metal Complexes and Electroluminescent Devices Comprising These Metal Complexes
申请人:MERCK PATENT GMBH
公开号:US20180066000A1
公开(公告)日:2018-03-08
The present invention relates to metal complexes having a metal atom of groups 13 to 15 and at least one ligand, where the ligand comprises at least one anionic coordination group having at least one oxygen and/or nitrogen atom via which the metal atom is coordinated, and the ligand comprises at least one triarylamine group, to processes for preparation thereof and to the use thereof in electronic devices, especially in organic electroluminescent devices, called OLEDs (OLED=organic light emitting diode). The present invention also further relates to organic electroluminescent devices comprising these metal complexes.
Phenyl-substituted N,N-dimethylanilines, synthesized by Suzuki coupling reactions in good yields, are transformed to their corresponding arylic carbanions by reductive C-N cleavage with lithium at room temperature. These carbanions react with various electrophiles affording the corresponding ipso-substituted products with absolute regioselectivity.