[3+3] annulation of allylic phosphoryl-stabilized carbanions/phosphorus ylides and vinyl azides: a practice strategy for synthesis of polyfunctionalized anilines
作者:Shen Liu、Wenteng Chen、Jing Luo、Yongping Yu
DOI:10.1039/c4cc03462g
日期:——
Tandem Michael addition and Witting or Horner-Wadsworth-Emmons olefination initiated [3+3] annulation between vinyl azides and allylic phosphorus ylides or allylic phosphoryl-stabilized carbanions has been developed. This one-pot protocol furnishes highly functionalized anilines in good to excellent yields under mild, room-temperature conditions. A rational mechanism is also proposed.
已经开发了在乙烯基叠氮化物和烯丙基磷酰化物或烯丙基磷酰基稳定的碳负离子之间进行串联迈克尔加成反应和Witting或Horner-Wadsworth-Emmons引发的烯化反应[3 + 3]。这种一锅法方案可在温和的室温条件下以高至优异的产率提供高度官能化的苯胺。还提出了一种合理的机制。