Highly diastereoselective cyclopalladation of α-ferrocenylethylphosphine: X-ray study of the first phosphapalladacycle of planar chirality

First planar chiral phosphapalladacycle was prepared in diastereomerically pure state via direct cyclopalladation of the di-tert-butyl-1-ferrocenylethylphosphine. The palladacycle structure was confirmed by 1H NMR spectra; relative configuration of central and planar chirality was determined by an X-ray diffraction study of the triphenylphosphine adduct.