Sequential Deoxyfluorination Approach for the Synthesis of Protected α,β,γ-Trifluoro-δ-amino Acids

Abstract

Backbone-homologated amino acids have been synthesized, containing three vicinal fluorine atoms placed stereospecifically along the carbon chain. Different trifluoro stereoisomers are found to have contrasting conformations, consistent with known stereoelectronic effects associated with C-F bonds.