This invention discloses a new series of host materials for OLEDs based on fused aromatic heterocycles. These compounds can improve the device EQE and lifetime.
本发明披露了一种基于融合芳香杂环的OLED主体材料新系列。这些化合物可以提高器件的EQE和寿命。
Dibenzo[a,c]carbazoles from 2-(2-bromoaryl)-3-arylindoles via a palladium-catalyzed intramolecular C–H functionalization/C–C bond formation process
The palladium-catalyzed cyclization of 2-(2-bromoaryl)-3-arylindoles provides a new versatile approach to dibenzo[a,c]carbazoles. The reaction tolerates a variety of useful substituents including chloro, nitro, ether, cyano, keto, and ester groups.