Abstract:Objective: Stereoselective synthesis of (S)-2,4,6-trimethylphenylalanine. Methods: 2,4,6-trimethylbenzoic acid was reduced to produce 2,4,6-trimethylbenzyl alcohol (1),which was brominated to generate 2,4,6-trimethylbenzyl bromide (2). The bromide (2) coupled with (S)-BPB-Ni(II)-Gly complex (3) to give (S)-Tmp-Ni(II) complex (4),which was then decomposed by acid to obtain (S)-2,4,6-trimethylphenylalanine (5). Results: (S)-2,4,6-trimethylphenylalanine was successfully synthesized at a total yield of 52.8%. Conclusion: Inexpensive and readily available starting material and reagents,simplicity of the experimental procedure and high yield make this method synthetically attractive for preparing the target amino acid.