Enantioselective heterogeneous catalytic production of alpha-amino acids

Author: Gomes Jr. Marlito   Hernández-Valdés R.   Marques Carlos E. S. J.   Bastos Marcelo L.   Aranda Donato A. G.   Antunes O. A.C.  

Publisher: Springer Publishing Company

ISSN: 0133-1736

Source: Reaction Kinetics and Catalysis Letters, Vol.87, Iss.1, 2005-12, pp. : 19-24

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Abstract

In the present paper the heterogeneous catalytic preparation of alpha-amino acids by hydrogenation of the dehydroamino acids catalyzed by palladium is described. Enantiomeric excess of up to 26% was achieved when the hydrogenation was carried out in ethanol at 0.5 MPa, 298 K with substrate concentration kept at 80 mmol L-1, 50 mol% cinchonidine as modified and triethylamine as addictive.