Asymmetric Synthesis of (S)-2-Amino-3-(1-naphthyl)propanoic Acid via Chiral Nickel Complex. Crystal Structure, Circular Dichroism, 1H and 13C NMR Spectra of the Complex
2005
Abstract
The preparative asymmetric synthesis of the non-coded amino acid 3-(1-naphthyl) alanine. The recently published environmentally friendly preparation of a glycine synthon 2 from regeneratable chiral auxiliary BPB ((S)-N-(2-benzoylphenyl)-N'-benzylprolinamide) was used for preparative asymmetric synthesis of the non-coded amino acid 3-(1-naphthyl)alanine (1).
Full assignment of 1H and 13C NMR of both intermediate complex 3 and 1 and X-ray structure determination of complex 3 were made. Cotton effects observed in circular dichroism spectrum of complex 3 are consistent with published empirical rules.