Double Asymmetric Induction in the Synthesis of Enantiomeric α-Aminophosphonic Acids Mediated by Sulfinimines
ABSTRACT
A double asymmetric induction in the synthesis of α-aminophosphonic acids is described. It involves the nucleophilic addition of anions of enantiomeric dimenthyl phosphites to both (+)-(S)- and (–)-(R)-enantiomers of N-(p-tolylsulfinyl)benzaldimine and subsequent acidic hydrolysis of the adducts formed. The match and mismatch effects were observed.