Atom transfer radical addition (ATRA) of carbon tetrachloride and chlorinated esters to various olefins catalyzed by Cp′Ru(PPh3)(PR3)Cl complexes

► Cp′Ru(PPh3)(PR3)Cl catalyzed atom transfer radical addition (ATRA). ► Highly active catalysts for ATRA. ► Addition of CCl4 and chlorinated esters to olefins. ► Addition of CCl4 to stilbene and chalcone.