C(sp2)−H/N−H coupling of α,β-unsaturated hydrazones resulting in substituted pyrazoles has been discovered. The process is catalyzed by hypervalent iodine species generated in situ through anodic oxidation of aryl iodide in fluorinated alcohol media. The formation of hypervalent iodine compound and its key role in the construction of a new C−N bond was confirmed with CV and NMR experiments. A wide range
                                    已发现α、β-不饱和腙的电
化学分子内交叉脱氢 C( sp 2 )-H/N-H 偶联,生成取代的
吡唑。该过程由芳基
碘在
氟化醇介质中的阳极氧化原位产生的高价
碘物质催化。CV 和 NMR 实验证实了高价
碘化合物的形成及其在新 C-N 键构建中的关键作用。以 46% 至 88% 的产率获得了广泛的取代
吡唑。