Modular Access to Eight‐Membered N‐Heterocycles by Directed Carbonylative C−C Bond Activation of Aminocyclopropanes
作者:Olivia Boyd、Gang‐Wei Wang、Olga O. Sokolova、Adam D. J. Calow、Sophie M. Bertrand、John F. Bower
DOI:10.1002/anie.201910276
日期:2019.12.19
Aminocyclopropanes equipped with pendant nucleophiles undergo carbonylative heterocyclization triggered by C-Cbondactivation to generate eight-membered N-heterocycles. In these processes, intramolecular "capture" of a rhodacyclopentanone intermediate by an aryl or N-based nucleophile is followed by C-C or C-N bond-forming "collapse" to the targets. These studies demonstrate how the combination of
配备有悬垂亲核试剂的氨基环丙烷经历由 CC 键活化触发的羰基化杂环化,生成八元 N-杂环。在这些过程中,芳基或 N 基亲核试剂分子内“捕获”环戊酮中间体,然后是 CC 或 CN 键形成“塌陷”到目标。这些研究证明了如何利用环丙烷应变释放和催化生成的金属环的模板效应的组合来实现具有挑战性的中等闭环。