N-Substituted alpha-amino beta-oxo esters have been obtained by amination of beta-enamino esters with ethyl N-[(4-nitrobenzenesulphonyl)oxy]carbamate (NsONHCO2Et), in the absence of added bases. The use of optically active pvrrolidines with C2 symmetry as chiral auxiliaries induces diastereoselectivities up to 80%
Easy access to alpha-amino beta-oxo esters from beta-enamino esters / Elena, Felice; Fioravanti, Stefania; Pellacani, Lucio; Tardella, Paolo Antonio. - In: TETRAHEDRON LETTERS. - ISSN 0040-4039. - STAMPA. - 40:(1999), pp. 4413-4416. [10.1016/s0040-4039(99)00760-1]
Easy access to alpha-amino beta-oxo esters from beta-enamino esters
FIORAVANTI, Stefania;PELLACANI, Lucio;TARDELLA, Paolo Antonio
1999
Abstract
N-Substituted alpha-amino beta-oxo esters have been obtained by amination of beta-enamino esters with ethyl N-[(4-nitrobenzenesulphonyl)oxy]carbamate (NsONHCO2Et), in the absence of added bases. The use of optically active pvrrolidines with C2 symmetry as chiral auxiliaries induces diastereoselectivities up to 80%File allegati a questo prodotto
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