Asymmetric Catalysis in the Complexation of Prochiral Dienes by the Tricarbonyliron Fragment: A Novel Methodology for the Enantioselective Synthesis of Planar Chiral Tricarbonyl(diene)iron Complexes

The asymmetric catalytic Fe(CO) 3 complexation of a prochiral ligand is achieved for the first time. The preparation of different enantiopure 1‐aza‐1,3‐butadiene catalysts and their application to the enantioselective synthesis of optically active, planar, chiral transition metal π complexes is reported [Eq. (a)].