Diastereoselectivity at chiral metal center of half-sandwich-type ruthenium complexes with planar-chiral cyclopentadienyl ligands in multiple ligand transfer reaction

The multiple ligand transfer reaction between planar-chiral cyclopentadienyl-ruthenium complexes [Cp′Ru(NCMe)2(L1)][PF6] and iron complexes CpFe(CO)(L2)X resulted in the formation of metal-centered chiral ruthenium complexes Cp′Ru(CO)(L1)X or Cp′Ru(CO)(L2)X in moderate yields with diastereoselectivities of up to 68% de.