Ring-opening hydroarylation of monosubstituted cyclopropanes enabled by hexafluoroisopropanol
作者:Edward Richmond、Jing Yi、Vuk D. Vuković、Fatima Sajadi、Christopher N. Rowley、Joseph Moran
DOI:10.1039/c8sc02126k
日期:——
Ring-opening hydroarylation of cyclopropanes is typically limited to substrates bearing a donor–acceptor motif. Here, the transformation is achieved for monosubstituted cyclopropanes by using catalytic Brønsted acid in hexafluoroisopropanol (HFIP) solvent, constituting a rare example where such cyclopropanes engage in intermolecular C–C bond formation. Branched products are obtained when electron-rich
环丙烷的开环加氢芳基化通常仅限于带有供体-受体基序的底物。在这里,单取代环丙烷的转化是通过在六氟异丙醇(HFIP)溶剂中使用催化布朗斯台德酸实现的,这是此类环丙烷参与分子间 C-C 键形成的罕见例子。当富电子芳基环丙烷与广泛的芳烃亲核试剂按照简单的 S N 1 型开环机理反应时,可获得支化产物。相反,当环丙基酮与富电子芳烃亲核试剂反应时,得到线性产物。在后一种情况下,机械实验和 DFT 计算支持同源共轭加法途径。