Cationic Palladium(II)-Catalyzed Highly Enantioselective [3 + 2] Annulation of 2-Acylarylboronic Acids with Substituted Alkynes

A cationic palladium(II)-catalyzed enantioselective tandem [3+2] annulation of 2-acylarylboronic acids with substituted alkynes to yield optically active 1-indenols was developed in high yields and excellent enantioselectivities.