Gold(III)-catalyzed direct nucleophilic substitution of propargylic alcohols
作者:Marie Georgy、Valérie Boucard、Olivier Debleds、Christophe Dal Zotto、Jean-Marc Campagne
DOI:10.1016/j.tet.2008.12.051
日期:2009.2
Gold-catalyzed nucleophilicsubstitution of propargylicalcohols with various nucleophiles (allylsilane, electron-rich aromatics, alcohols, thiols, hydrides, 1,3-dicarbonyl derivatives, sulfonamides) is described under very mild conditions (room temperature in dichloromethane). Preliminary mechanistic investigations suggest a mechanism through a carbocation intermediate. Nucleophilicsubstitutions on allylic