The Grob/Eschenmoser fragmentation of cycloalkanones bearing β-electron withdrawing groups: a general strategy to acyclic synthetic intermediates
作者:Judith Hierold、Tina Hsia、David W. Lupton
DOI:10.1039/c0ob00632g
日期:——
a β-electron withdrawing group to cycloalkanones allows facile C–C bond fragmentation. The reaction has been demonstrated with a large range of ring sizes, bearing various leaving and electron withdrawing groups, and using a variety of nitrogen and oxygen containing nucleophiles (>30 examples). The application of fragmentation products to the preparation of substituted γ-lactones has been demonstrated
在环烷酮中引入一个β电子吸电子基团可以使CC键断裂变得容易。已经证明该反应具有大范围的环尺寸,带有各种离去和吸电子基团,并使用了各种含氮和氧的亲核试剂(> 30个实例)。已经证明了碎裂产物在制备取代的γ-内酯中的应用。据报道,机理研究提示了Grob / Eschenmoser型反应。