TfOH-Catalyzed Regioselective S–H Insertion of Cyclic Thioamide Derivatives with Diazo Compounds at Room Temperature
作者:Chunyan Li、Rui Wang、Li Huang、Jiale Chen、Jingru Jin、Qiongjiao Yan、Wei Wang、Haifeng Wang、Fener Chen
DOI:10.1021/acs.joc.2c03074
日期:——
We have developed a method for highly regioselective S–H bond insertion reactions of various diazo compounds and cyclic thioamide derivatives at room temperature. These reactions provide straightforward access to alkylated benzimidazoles, benzothiazoles, and benzoxazoles. This mild method uses readily available TfOH as a catalyst and features a broad substrate scope, good functional group tolerance
我们开发了一种在室温下对各种重氮化合物和环状硫代酰胺衍生物进行高度区域选择性 S-H 键插入反应的方法。这些反应提供了直接获得烷基化苯并咪唑、苯并噻唑和苯并恶唑的途径。这种温和的方法使用现成的 TfOH 作为催化剂,具有广泛的底物范围、良好的官能团耐受性、良好至优异的产率和高区域选择性。