Synthesis and stereochemistry of bis(cyclopalladium) complexes of 1,1′-bis [1-(arylimino)ethyl]ferrocenes

Article abstract of DOI:10.1016/0277-5387(96)00101-5

Double cyclopalladation of 1,1′-bis[(arylimino)ethyl]ferrocenes with Li₂PdCl₄ followed by treatment with PPh₃ afforded meso and dl stereoisomers of bis(palladium) complexes and the individual stereoisomers were isolated successfully by column chromatography. The composition and the structure of the metallocycles were characterized by elemental analysis, IR and ¹H NMR spectroscopy. A mechanism for the formation of stereoisomers in the cyclopalladation reaction was suggested. Copyright