Highly Efficient and Selective Synthesis of (E)-α,β-Unsaturated Ketones by Crossed Condensation of Ketones and Aldehydes Catalyzed by an Air-Stable Cationic Organobismuth Perfluorooctanesulfonate

摘要

An air-stable cationic organobismuth perfluorooctanesulfonate possessing both acidic and basic characters was synthesized, and showed high catalytic activity, diastereoselectivity, stability, and reusability in the one-pot synthesis of (E)-α,β-unsa- turated ketones through highly selective crossed condensation of ketones and aldehydes in water.