Synthesis of New Chiral Arene Ruthenium(II) Aminophosphinephosphinite Complexes and Use in Asymmetric Hydrogenation of an Activated Keto Compound

Article abstract of DOI:10.1016/0957-4166(94)80006-5

The easy access to new arene-ruthenium(II)bisphoshine complexes bearing aminophosphine phosphinite ligands is presented.The complexes were prepared in two steps from 2 under mild conditions and were found to be effective precursors for the asymmetric hydrogenation of dihydro-4,4-dimethyl-2,3-furandione giving the corresponding pantolactone with up to 42percent enantiomeric excess.