作者:Thomas D. Svejstrup、Alessandro Ruffoni、Fabio Juliá、Valentin M. Aubert、Daniele Leonori
DOI:10.1002/anie.201708693
日期:2017.11.20
structural motifs from simple building blocks is desirable but still challenging. We demonstrate that protonated electron-poor O-aryl hydroxylamines give aminium radicals in the presence of Ru(bpy)3 Cl2 . These highly electrophilic species undergo polarized radical addition to aromatic compounds in high yield and selectivity. We successfully applied this method to the late-stage modification of chiral catalyst
芳胺构成了许多治疗剂、农用化学品和有机材料的核心结构。开发从简单的构建块有效且选择性地构建这些结构主题的方法是可取的,但仍然具有挑战性。我们证明质子化的缺电子 O-芳基羟胺在 Ru(bpy)3 Cl2 存在下产生铵自由基。这些高亲电子物质以高产率和选择性进行极化自由基加成到芳香族化合物中。我们成功地将这种方法应用于手性催化剂模板、治疗剂和天然产物的后期修饰。