Bi(OTf)3 (bismuth triflate)-mediated one-pot tandem annulation of oxygenated 1-aryl isochroman-3-ones with oxygenated arenes provides polyoxygenated homotriptycenes in moderate to good yields in MeNO2 at reflux (101 °C) for 10 h under an air atmosphere and easy-operational conditions via intermolecular and intramolecular Friedel–Crafts type procedures. A plausible mechanism is proposed and discussed
Bi(OTf) 3 (
三氟甲磺酸铋)介导的氧化 1-芳基 isochroman-3-one 与氧化
芳烃的一锅串联环化在回流(101 °C)下在 MeNO 2中以中等至良好的产率提供聚氧化同型
三蝶烯 10 小时在空气气氛和易于操作的条件下,通过分子间和分子内的 Friedel-Crafts 类型程序。提出并讨论了一种似是而非的机制。该协议通过三个碳-碳 (C-C) 键形成提供了高效的闭环。