Patrick Lennon

The addition of heteroatomic nucleophiles to dicarbonyl-η5-cyclopentadienyl(olefin)iron cations☆

Abstract The additions of a number of heteroatomic nucleophiles, including methanol, amines, phosphines, phosphites and thiols to dicarbonyl-η 5 -cyclopentadienyl(olefin)iron cations are reported. These reactions generally occur with high regio-specificity to monosubstituted olefin complexes, affording a single adduct. The thermal stability of the adducts depends on the nature of the nucleophile and of the olefin substituent. Addition of benzylamine, dimethylamine or trimethylamine to the propene complex takes place competitive with deprotonation of the olefin ligand. Factors affecting the regiospecificity of the reactions are considered.

Diastereospecificity in the formation of chelated organometallic complexes

Abstract Three types of intramolecular cyclization reactions in organoiron complexes having one or more chiral centers are shown to proceed with high diastereospecificity.