Reactivity of acyclic (pentadienyl)iron(1+) cations with weak carbon nucleophiles

Article abstract of DOI:10.1016/S0022-328X(01)00869-5

The reaction of acyclic tricarbonyl(pentadienyl)iron(1+) cations with allyl trimethylsilane or with excess furan leads to (E,E-diene)iron complexes. Attack of these weak nucleophiles on the transoid form of the pentadienyl cation is presumably faster than