(η6-Cyclohepta-1,3,5-triene)(η4-cycloocta-1,5-diene)iron(0) complex as attractive precursor in catalysis

The catalytic activity of the complex Fe(η6-CHT)(η4-COD), (CHT=1,3,5-cycloheptatriene; COD=1,5-cyclooctadiene), 1, has been evaluated in some reference reactions such as the hydroformylation of 1-hexene and styrene and the cyclotrimerisation of a wide range of terminal and internal acetylenes. The title complex has been found to be a convenient catalytic precursor and it resulted more active than other iron catalysts in the investigated reactions.