S. Attar et al., DIASTEREOSELECTIVITY OF CHLORIDE SUBSTITUTION-REACTIONS OF CYCLORUTHENATED (R)(C)-(- AND (S)(C)-(-)-DIMETHYL(1-PHENYLETHYL)AMINE()), Organometallics, 15(13), 1996, pp. 2932-2946
The diastereoselectivity of chloride substitution in the two enantiome
ric ruthenacycles (S-Ru, R(C))- and (R(Ru), S-C)-{(eta(6)-C6H6)RU(C6H4
CH(Me)N(Me)(2)]}} by bromide, iodide, and selected nitrogen and phosph
orus donor ligands has been determined by a combination of H-1, C-13-
{H-1}, and P-31{H-1} NMR spectroscopy, UV-visible spectroscopy, circul
ar dichroism, and, where possible, single-crystal X-ray crystallograph
y. The diastereoselectivity generally increases with increasing steric
bulk of the incoming ligand and proceeds with predominant retention o
f configuration at ruthenium.