511544-23-3Relevant articles and documents
Halo-substituted (S)-N-(2-benzoylphenyl)-1-benzylpyrolidine-2-carboxamides as new chiral auxiliaries for the asymmetric synthesis of (S)-α-amino acids
Belokon,Maleev,Petrosyan,Savel'eva,Ikonnikov,Peregudov,Khrustalev,Saghiyan
, p. 1593 - 1599 (2002)
The synthesis of new chiral auxiliaries (S)-N-(2-benzoylphenyl)-1-(3,4-dichlorobenzyl)-pyrrolidine-2-carboxamide (1a), (S)-N-(2-benzoylphenyl)-1-(pentafluorobenzyl)pyrrolidine-2-carboxamide (1b), and (S)-N-(2-benzoylphenyl)-1-(4-isopropoxytetrafluorobenzyl) pyrrolidine-2-carboxamide (1c) and their application in the asymmetric synthesis of amino acids using NiII complexes of their Schiff's bases with alanine and glycine are described. Compound la is particularly appropriate for highly stereoselective synthesis of α-methyl-α -amino acids with high enatiomeric purity (ee >95%).