S,O?Ligand?Promoted Pd?Catalyzed C?H Olefination of Anisole Derivatives

The C?H olefination of substituted anisole derivatives by a Pd/S,O-ligand catalyst is reported. reaction proceeds under mild conditions with broad range aryl ethers bearing both electron donating and withdrawing substituents at ortho, meta para positions. Aryl are used as limiting reagents good yields site selectivities observed. methodology operationally simple can be performed aerobic conditions.