We developed herein a regioselective construction of non-C2 symmetrical NOBIN-type biaryls through a cascade N-arylation and [3,3]-sigmatropic rearrangement from O-arylhydroxylamines and diaryliodonium salts under mild conditions. The employment of copper salt could inhibit the further O-arylation of the newly formed biaryl products, otherwise, O-arylated NOBIN-type products were furnished in moderate
我们在此开发了在温和条件下通过级联N-芳基化和O-芳基
羟胺和二芳基
碘鎓盐的[3,3]-σ迁移重排非C 2对称NOBIN型联芳基的区域选择性构建。
铜盐的使用可以抑制新形成的联芳基产物的进一步O-芳基化,否则, O-芳基化NOBIN型产品以中等至良好的分离产率提供。该协议的产品可以进一步转化为高价值的功能分子和杂环。