The N-aryl aminocarbonyl ortho-substituent effect in Cu-catalyzed aryl amination and its application in the synthesis of 5-substituted 11-oxo-dibenzodiazepines.

Double amination of ortho-substituted aryl bromides proceeded under mild conditions to afford 5-substituted 11-oxo-dibenzodiazepines, which revealed that there is a strong ortho-substituent effect caused by N-aryl aminocarbonyl groups during copper-catalyzed aryl amination.