derivatives that are readily available from both synthetic and biocatalytic approaches undergo gold-catalyzed dearomative cyclizations in aqueous media to the corresponding spirocyclic derivatives. In addition to the efficiency of the method, operating in aqueous media affords a selective entry to C2-unsubstituted spiroindolenines that have long remained unattainable by Au(I) catalysis. Moderate to excellent
可以从合成和
生物催化方法容易获得的N-
丙炔基
色胺和色
氨酸衍
生物在
水性介质中经历
金催化的脱芳香环化反应,形成相应的螺环衍
生物。除了该方法的效率以外,在
水性介质中操作还提供了选择性进入C2-未取代螺环
吲哚胺的选择权,这些化合物长期以来仍无法通过Au(I)催化获得。获得了具有各种取代基的所需螺环产物的中等至优异的产率。