Construction of polysubstituted pentafulvenes <i>via</i> palladium-catalyzed deacetylation of enones
作者:Ling-Jun Li、Xing Wang、Hui Xu、Hui-Xiong Dai
DOI:10.1039/d2cc06644k
日期:——
Herein, we report an efficient synthetic method for polysubstituted pentafulvenes via palladium-catalyzed deacetylative [2+2+1] annulation of enones with alkynes. Aryl-, alkenyl-, and alkyl-substituted α,β-enones were suitable substrates, affording the pentafulvene products in moderate to good yields. This protocol shows excellent compatibility with sensitive halides, free hydroxyl groups, and heterocycles
在此,我们报告了一种通过钯催化的烯酮与炔烃的脱乙酰化 [2+2+1] 环化反应来合成多取代五富烯的有效方法。芳基、烯基和烷基取代的 α,β-烯酮是合适的底物,以中等至良好的收率提供五富烯产物。该协议显示出与敏感卤化物、游离羟基和杂环化合物的良好相容性。一锅法克级合成以及在天然产物后期修饰中的进一步应用证明了该方法的合成效用。