Ruthenium Bis-Sulfonate Complexes: Synthesis and Application in Asymmetric Hydrogenation

A series of Ru-(L)-(X)(2) complexes (L = bidentate ligand; X = OMs, OTs, OTf) was synthesized and characterized. Ru-(BINAP)-(OMs)(2) showed improved catalytic performance over the established Ru-(BINAP)-(OAc)(2) catalyst, highlighting the impact of anion variation on catalytic asymmetric hydrogenations.