Homogeneous catalysis by transition metal complexes. Part VI: Hydroformylation of 1-octene catalysed by [η5-C5R5M(CO)2X] and [η5-C5R5M(CO)2]2 species (R = H, CH3, C6H5; M = Fe, Ru; X = Cl, Br, I)

Abstract The hydroformylation of 1-octene catalysed by the title compounds has been examined at 135 °C under an atmosphere of H 2 and CO at a pressure of 85 atm. The influence on the activity and selectivity of various parameters such as the nature of the metal, the nuclearity of the original complex and the electronic and steric effects induced by the substituents on the cyclopentadienyl ligand has been investigated and discussed.