Abstract
Palladium-catalyzed chemical fixation of CO2 is successfully achieved using the π-allyl group related to heterocycles as a carbon-based ligand. The PdNPs generated in situ played a key role for the success in the carboxylative Stille coupling reaction. [Display omitted]
The palladium-catalyzed three-component coupling reaction of five-membered (chloromethyl)heteroarenes, allyltributylstannane, and carbon dioxide (carboxylative Stille coupling reaction) was successfully conducted to produce β,γ-unsaturated esters in satisfactory to good yields. The carboxylative Stille coupling reaction occurred smoothly under mild conditions in the presence of palladium nanoparticles through the formation of π-allylpalladium chloride intermediates.