Publicaciones > Otero et al
Gold-catalyzed synthesis of oxepinones: an experimental mechanistic evidence
Palabras clave: Gold catalysis; Oxepinones; Mechanism; π-Acids; Vinylcyclopropenes
Resumen
The isolation of a bicyclic lactone and its room temperature isomerization in CDCl3 to the expected oxepinone allows confirmation of a previously proposed mechanism for the gold-catalyzed synthesis of oxepinones from donor–acceptor alkynylcyclopropanes. However, the unsuccessful conversion of another bicyclic lactone into its corresponding oxepinone points out to a substrate-dependent mechanism.