Metal-free, Direct Conversion Of α-amino Acids Into α-keto γ-amino Esters For The Synthesis Of α,γ-peptides

An efficient, metal-free synthesis of unusual α-keto γ-amino esters from α-amino acids is achieved by a radical scission–oxidation–addition of silyloxy acrylates procedure, where no purification of the reaction intermediates is needed. The process allows the synthesis of α,γ-peptides.