One-Pot Preparation of Bridged Tricyclic and Fused Tetracyclic Scaffolds via Rhodium(III)-Catalyzed Asymmetric Borylative Cyclization

Bridged and fused polycyclic structures are found in a huge number of natural products. Significant progress has been made on their syntheses; however, facile and practical strategies to afford polycycles with tunable substituents and functional groups remain rare. Here, we report a practical rhodium(III)-catalyzed asymmetric borylative cyclization of cyclohexadienone-containing 1,6-enynes, affording highly enantioenriched cis-bicyclic...