Diastereoselective Oxidative Addition of Allyl Chloride to Planar-Chiral Cyclopentadienyl−Ruthenium Complexes

The reaction of planar-chiral cyclopentadienyl−ruthenium complexes with allyl chloride at room
temperature resulted in the diastereoselective formation
of π-allyl−ruthenium complexes, in which the chirality
at the Ru center depended on the substituent at the
4-position of the cyclopentadienyl group. Epimerization
at the Ru center of π-allyl complexes at 90 °C suggested
that the diastereoselectivity was under kinetic control.