Aryl radicals are known as highly reactive intermediates.[1] For intermolecular reactions, especially for Meerwein-[2] or Gomberg–Bachmann-type [3] functionalizations of nonactivated alkenes or arenes, special precautions usually have to be undertaken to prevent undesired side reactions, such as hydrogen abstraction from the solvent.[4] The most common countermeasure hereby is to employ the alkene or arene in high excess, in ...