Over past years,chiral phosphines have emerged as powerful nucleophilic catalysis and ligands of transition metal catalysis Despite many types of privileged pho
α-and β-Amino phosphonate functionalities by mimicking a-and B-amino acids as an important pharmacophore play key roles in various biological activities such
Recently,chiral sulfoxide as ligands in transition metal catalyzed asymmetric reactions have attract more and more attention[1].However,the scope of developed r