Synthesis of 1,3-Azaphospholes with Pyrrolo[1,2‑<i>a</i>]quinoline Skeleton and Their Optical Applications

A facile synthesis of 1,3-azaphospholes with a pyrrolo­[1,2-<i>a</i>]­quinoline skeleton has been described. These new annulated 1,3-azaphospholes exhibit good photoelectric performance and can be used as the emitting dopant in organic light-emitting diodes (OLEDs) and dye for bioimaging