标题：α,β-diaryl unsaturated ketones via palladiumcatalyzed ring-opening of cyclopropenones with organoboronic acids
abstact：palladium-catalyzed ring-opening acylation of cyclopropenones with organoboronic acids at room temperature has been developed. both arylboronic acids and vinylboronic acids are viable in this acylation reaction, providing a new protocol to synthesise α,β-diaryl unsaturated ketones with good yields and excellent stereospecificity. preliminary mechanistic studies indicated that a vinylpalladium intermediate was generated in this procedure.
