Regiospecific rearrangements of η2 and η4-1,4-diene complexes of iron(0); the mechanisms of metal-promoted 1,3-hydrogen shifts
Abstract
Thermal rearrangements of η2- and η4-3-methylene-4-vinyldihdrofuran-2(3H)-one complexes of iron(0) yield isomeric 1,3-diene complexes via regiospecific 1,3-hydrogen shifts; the mechanistic implications with respect to metal-promoted olefin isomerisations are discussed.