ENONE FORMATION FROM ALLYL β-KETO ESTERS, ALKENYL ALLYL CARBONATES, SILYL ENOL ETHERS, AND ENOL ACETATES BY THE PHOSPHINE-FREE PALLADIUM CATALYST

Abstract The effect of phosphine ligands on the palladium catalyzed enone formation from allyl β-keto esters, alkenyl allyl carbonates, silyl enol ethers, and enol acetates has been reinvestigated, and clean enone formation was observed by a phosphine-free palladium catalyst.