Free radical coupling reactions of organoiron complexes: electrochemical studies and preliminary cross coupling experiments

Abstract

Reductive dimerization of tricarbonyl(1-methoxycarbonylcyclohexadienyl)iron hexafluorophosphate proceeds in a regioselective manner using either zinc dust or electrochemical techniques, cyclic voltammetry experiments providing evidence for a one-electron transfer process involving free radical intermediates; the first example of intramolecular cross coupling of the free radical with an alkene moiety is reported.