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From over-stoichiometric to sub-stoichiometric enantioselective protonation with 2-sulfinyl alcohols: a view in perspective

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From over-stoichiometric to sub-stoichiometric enantioselective protonation with 2-sulfinyl alcohols: a view in perspective

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Medio Simón, Mercedes; Alemán López, Pedro Antonio; Cuenca González, Ana Belén; Gil Tomás, Jesús Javier; Rodriguez, Nuria; Asensio Aguilar, Gregorio

Aquest document és un/a article, creat/da en: 2005

Este documento está disponible también en : http://www.arkat-usa.org/get-file/18922/

A general study of the enantioselective protonation of prochiral enolates with 2-sulfinyl alcohols is reported. The modification of reaction conditions to reduce drastically the amount of chiral proton source needed to obtain a good enantiomeric excess is reported. The effects of the different factors controlling the stereoselectivity are clearly established. Different protocols for enolate generation are compared.

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