Synthesis of N-Hydroxy α-Amino Acids from α-Hydroxy Acids with High Enantiomeric Purity

Abstract
An efficient synthesis of N-alkoxycarbonyl-O-alkoxycarbonyl and N-hydroxy α-amino acids has been developed utilizing a Mitsunobu reaction and N-alkoxycarbonyl-O-alkoxycarbonyl hydroxylamines as nucleophiles. The method also gives access to D- or L-α-amino acids by reductive cleavage of the N-hydroxy derivatives.

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