Ruthenium Carbonyl Complexes Bearing Secondary Phosphine Oxides and Phosphinous Acids: Synthesis, Characterization, and Application in Catalysis

Two series of ruthenium carbonyl complexes bearing either one secondary phosphine oxide ligand or two phosphinous acids have been synthesized and characterized. The catalytic behavior of these complexes has been then investigated for the cycloisomerization of arenynes. This study highlighted a strong relationship between ligands’ and substrates’ substructures.