tethered allenamides is described, providing regiodivergent indole and indoline derivatives controlled by the N-protecting group. This room temperature reaction provided a functionalizable olefinic moiety with broad substrate scope. Preliminary mechanistic studies support the rearrangement of an indoline-derived intermediate to indoles with the N-acetyl allenamides forming free (NH) indoles.
描述了一种温和的、
钯催化的多米诺 Heck 环化/烷氧基化芳基卤化物系链烯酰胺序列,提供受 N-保护基团控制的区域发散
吲哚和二氢
吲哚衍
生物。该室温反应提供了具有广泛底物范围的可官能化烯烃部分。初步机制研究支持二氢
吲哚衍生中间体重排为
吲哚,N-乙酰丙二酰胺形成游离 (NH)
吲哚。