Isoquinoline and quinoline have been discovered as novel ligands for palladium-catalyzedoxidative cascade cyclization reactions. With our new catalyst systems (Pd(OAc)2/isoquinoline or quinoline), unsaturated anilides cyclize under an oxygenatmosphere (1 atm) to furnish structurally versatile indoline derivatives in good yields. One C−N bond and two C−C bonds are formed in a single step with excellent