Co-Catalyzed decarbonylative alkylative esterification of styrenes with aliphatic aldehydes and hypervalent iodine(<scp>iii</scp>) reagents

A convenient Co-catalyzed three-component decarbonylative alkylative esterification of styrene derivatives with aliphatic aldehydes and iodobenzene diacetate to provide chain elongated acetates and benzoates has been developed. Readily available aliphatic aldehydes are decarbonylated into 1&#176;, 2&#176; and 3&#176; alkyl radicals for the construction of a C(sp3)–C(sp3) bond via radical addition and an interconversion of CoII–CoIII–CoI complexes is accountable for the formation of a C(sp3)–O bond.