Chromium(II)‐Mediated Intermolecular Free‐Radical Carbon — Carbon Bond Formation

Abstract
Chromium(II) complexes are found to be effective mediators for intermolecular free‐radical C–C bond formation. Thus, Cr(en)22+ species react with alkyl halides to generate the corresponding alkyl radicals which are readily trapped with electron‐deficient alkenes to afford the coupling products.