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

Abstract

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