Palladium(II)-Catalyzed Tandem Intramolecular Aminopalladation of Alkynes and Conjugate Addition. Synthesis of Oxazolidinones, Imidazolidinones, and Lactams

摘要

Under the catalysis of a divalent palladium species, oxazolidinones, imidazolidinones, or lactams were conveniently obtained with high chemo- and stereoselectivity from the tandem intramolecular aminopalladation of alkynes, followed by insertion of alkenes, and protonolysis of the newly formed carbon-palladium bond.