Enantioselective Synthesis of α‐Methyl‐α‐aminocarboxylic Acids by Alkylation of the Lactim Ether of <i>cyclo</i>‐(<scp>L</scp>‐Ala‐<scp>L</scp>‐Ala)

Abstract

Preparatively valuable asymmetric amino acid syntheses must be simple to carry out, give yields of >90%, and, where appropriate, permit recovery of the chiral auxiliary agent. These demands are met by the new synthesis via cyclo-(L-Ala-L-Ala).