Redox catalysis in free-radical reactions: New, simple, convenient intramolecular homolytic aromatic substitutions

Three new general, simple and convenient procedures of intramolecular homolytic aromatic substitution leading to homocyclic and heterocyclic compounds have been developed by addition of aryl or nucleophilic alkyl radicals to alkenes conjugated with electron-withdrawing groups in the presence of metal salt redox systems.