A novel protocol mediated by DBU for the construction of sp2 C–N bond between 3-alkenyl oxindoles and indazole/benzotriazole has been successfully accomplished. But the cascade reaction of 3-alkenyl oxindoles with benzimidazole leads to the formation of sp2 C-C coupling products under similar conditions. Starting from 3-alkenyl oxindoles, various stereodefined aromatic substituted 3-alkenyl oxindoles
由
DBU 介导的用于在 3-烯基羟
吲哚和
吲唑/苯并三唑之间构建 sp 2 C-N 键的新方案已成功完成。但 3-烯基羟
吲哚与
苯并咪唑的级联反应导致在类似条件下形成 sp 2 CC 偶联产物。从 3-烯基羟
吲哚开始,可以在简单的条件下获得各种立体定义的芳族取代的 3-烯基羟
吲哚,而不会受到过渡
金属残基的污染。