Asymmetric Synthesis of α-Methylphosphophenylalanine Derivatives Using Sulfinimine-Derived Enantiopure Aziridine-2-phosphonates

Abstract
2-Methylaziridine-2-phosphonates were prepared from enantiopure sulfinimines and were demonstrated to be versatile synthetic intermediates for the synthesis of novel α-disubstituted and α,β-trisubstituted α-aminophosphonate derivatives. The first asymmetric synthesis of both enantiomers of α-methylphosphophenylalanine is described.