Dimeric Metal Complexes as Mediator for Radical C-C Bond-Forming Reactions

Article abstract of DOI:10.1002/hlca.19910740523

Irradiation of dicarbonyl(η⁵-cyclopentadienyl)iron dimer 1 or decacarbonyldimanganese (2) in the presence of alkyl halides leads to C-centered radicals which can be trapped by alkenes and yields saturated and/or unsaturated addition products.Carbon radicals are generated via halogen abstraction by the initially formed metal-centered radicals resulting from homolysis of the metal-metal bond of dimeric mediators 1 and 2.No reaction occurs using octacarbonyl dicobalt (3).