Formation of Polycyclic Lactones through a Ruthenium-Catalyzed Ring-Closing Metathesis/Hetero-Pauson–Khand Reaction Sequence
作者:David F. Finnegan、Marc L. Snapper
DOI:10.1021/jo200359c
日期:2011.5.20
form multiple carbon–carbon bonds in one operation can generate molecular complexity quickly and therefore be used to shorten syntheses of desirable molecules. We selected the hetero-Pauson–Khand (HPK) cycloaddition and ring-closing metathesis (RCM) as two unique carbon–carbon bond-forming reactions that could be united in a tandem ruthenium-catalyzed process. In doing so, complex polycyclic products
在一次操作中形成多个碳-碳键的过程会迅速产生分子复杂性,因此可用于缩短所需分子的合成。我们选择异质-鲍森-坎德(HPK)环加成和闭环复分解(RCM)作为两个独特的碳-碳键形成反应,可以在串联钌催化的过程中结合在一起。这样做,可以使用单一钌添加剂在一个反应容器中从无环前体中获得复杂的多环产物,该钌添加剂可以顺序催化两种机理上不同的转化。