SEARCH Articles Figures Tables Heteroatom oxidations Heteroatom substituted phosphine oxides HASPOs) Heteroatom substituted secondary phosphine oxide Heteroatom substitution Heteroatom-substituted Heteroatom-substituted secondary phosphine oxide ligands Heteroatoms oxidative Oxidation heteroatoms Oxidative substitution Phosphine oxides Phosphine oxides oxidation Phosphine substitution Substituted Oxidation Substitution heteroatom-substituted