Palladium-catalyzed three-component coupling of propargylic oxiranes, phenols and carbon dioxide

(Z)-1-Phenoxyalkenyl-substituted cyclic carbonates have been produced from three-component coupling of propargylic oxiranes, phenols and carbon dioxide in the presence of palladium catalyst. The scope and limitations of this reaction have been examined by using various phenols and propargylic oxiranes. A plausible mechanism for the reaction is also proposed.