gold-catalyzed α-C−H bond functionalization of tertiary amine was achieved via the intermediacy of a reactive α-imino gold carbene. The use of a malonate group exerting electronic, steric and conformational synergistic effects was key to the success of the transformation. The tetrahydro-γ-carboline products could be subsequently oxidized to access structural motifs found in bioactive natural products.
具有挑战性的
金催化的叔胺 α-C-H 键功能化是通过反应性 α-亚
氨基
金卡宾的中介实现的。使用发挥电子、空间和构象协同作用的
丙二酸基团是转化成功的关键。四氢-γ-咔啉产物随后可以被氧化以获得
生物活性
天然产物中发现的结构基序。