The palladium-catalyzed amination of a variety of aryl chlorides has been accomplished by using di (dicyclohexylamino) phenylphosphine (1) as a bulky electron-rich monoaryl phosphine ligand. The optimized condition for the palladium-catalyzed amination of aryl chloride is the followings: aniline (3.0 mmol, 1.0 equiv), chlorobenzene (3.15 mmol, 1.05 equiv), ligand 1 (1 mol%, 0.03 mmol), KOtBu (4.5 mmol, 1.5 equiv), Pd2 (dba) 3 (1 mol%, ...
