copper‐catalyzed intramolecular carbotrifluoromethylation of ene‐imines with Togni reagent as a trifluoromethylating reagent was realized. The reaction tolerates a range of substrates to give the corresponding 3‐trifluoroethylated 4‐amino‐chromans in moderate to good yields. A possible mechanism was proposed based on the experimental results.
使用Togni试剂作为三
氟甲基化试剂,实现了温和有效的
铜催化的
烯亚胺的分子内
碳三
氟甲基化。该反应可耐受多种底物,从而以中等至良好的产率得到相应的3-三
氟乙基化的4-
氨基色
氨酸。根据实验结果提出了一种可能的机理。