Stereoselective synthesis of α-alkylated γ,δ-unsaturated amino acids via Claisen rearrangement of chelated enolates
Abstract
Ester enolate Claisen rearrangement of chelated N-protected amino acid allylic esters results in the formation of α-alkylated γ,δ-unsaturated amino acids in good yields and in a highly diastereoselective fashion.