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A practical method for the absolute configuration assignment of α-amino acids using their Pd(dmba) amino acidato complexes

✍ Scribed by Oscar Cantín; Carlos Cativiela; María D. Díaz-de-Villegas; Rafael Navarro; Esteban P. Urriolabeitia

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 473 KB
Volume: 7
Category: Article
ISSN: 0957-4166
DOI: 10.1016/0957-4166(96)00346-1

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## Abstract Enantiopure α‐amino acids were converted to 4‐substituted 2‐aryl‐ and 2‐alkyl‐5(4__H__)‐oxazolones under partial racemization. These nonracemic mixtures were dissolved in CDCl~3~, an equimolar amount of the chiral dirhodium complex $Rh^{\rm (II)}\_{2}$[(__R__)− (+)− MTPA]~4~ (MTPA‐H = M