Synthesis of functionized N-arylbenzotriazoles via palladium catalyzed intramolecular amination
作者:Dachao Wang、Xiaoting Gan、Lewei Zhou、Hanyu Shu、Jun Zhou
DOI:10.1016/j.tetlet.2021.153587
日期:2022.1
The functionalized benzotriazoles are prepared by palladium catalyzed intramolecular amination of 2-bromodiaryltriazene. By screening the reaction conditions, such as ligand, solvent, base and reaction concentration, the optimal reaction conditions were obtained, and 28 functionalized benzotriazole derivatives were successfully prepared up to 99% yield. The method is easy to operate and has good tolerance
功能化的苯并三唑是通过钯催化的 2-溴二芳基三氮烯的分子内胺化制备的。通过对配体、溶剂、碱和反应浓度等反应条件进行筛选,得到了最佳反应条件,成功制备了28种功能化苯并三唑衍生物,收率高达99%。该方法操作简单,对多种官能团具有良好的耐受性。