Enantioselective aza-Michael initiated ring closure (MIRC) additions of ethyl nosyloxycarbamate to 2-(phenylsulfanyl)-2-cycloalkenones catalysed by Cinchona alkaloids were studied. The results suggest that the enantioselectivity obtained is influenced by the structure of the catalyst and the different amination conditions. Substrate ring size also plays an important role. (C) 2004 Elsevier Ltd. All rights reserved.
Cinchona alkaloids in the asymmetric synthesis of 2-(phenylsulfanyl)aziridines / Fioravanti, Stefania; Maria Gabriella, Mascia; Pellacani, Lucio; Tardella, Paolo Antonio. - In: TETRAHEDRON. - ISSN 0040-4020. - STAMPA. - 60:37(2004), pp. 8073-8077. [10.1016/j.tet.2004.06.119]
Cinchona alkaloids in the asymmetric synthesis of 2-(phenylsulfanyl)aziridines
FIORAVANTI, Stefania;PELLACANI, Lucio;TARDELLA, Paolo Antonio
2004
Abstract
Enantioselective aza-Michael initiated ring closure (MIRC) additions of ethyl nosyloxycarbamate to 2-(phenylsulfanyl)-2-cycloalkenones catalysed by Cinchona alkaloids were studied. The results suggest that the enantioselectivity obtained is influenced by the structure of the catalyst and the different amination conditions. Substrate ring size also plays an important role. (C) 2004 Elsevier Ltd. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
