strategy to trap iminyl radicals with copper ions has been developed at room temperature, the resulted high-valent Cu(III) imine intermediate resets quickly to form nitrene and then to furnish a 2H-azirine. This protocol with dual copper/photoredox catalyst enables the selective imination of unactivated C-H bonds under mild conditions with a broader scope. Moreover, this method also uncovers a novel ring-expansion
在室温下开发了一种用
铜离子捕获
亚胺基的新策略,所得的高价Cu(III)
亚胺中间体迅速复位,形成亚硝基,然后提供2H-
叠氮基。带有双
铜/光氧化还原催化剂的该方案能够在较宽的范围内在温和条件下选择性活化未活化的CH键。此外,该方法还揭示了由
环丁基肟衍
生物产生α-酰基
氨基
环戊烷酮的新的扩环重排。