A Chemoselective and Desulfurative Chan-Lam Coupling: C-N Bond Formation between Benzimidazoline-2-Thiones and Arylboronic Acids
作者:Jin-Quan Chen、Xing Liu、Jia Guo、Zhi-Bing Dong
DOI:10.1002/ejoc.202000075
日期:2020.5.3
An efficient method for the chemoselective and desulfurative Chan–Lam cross‐coupling was developed. By modulating the amount of the catalyst Cu(OAc)2·H2O, alkali, temperature, and solvent, the desulfurative C–N bond formation product (N‐arylbenzimidazoles) could be selectively furnished smoothly. This protocol shows potential synthetic value for the preparation of a diversity of arylbenzoheterocyclic
开发了一种化学选择性和脱硫Chan-Lam交叉偶联的有效方法。通过调节催化剂Cu(OAc)2 · H 2 O的量,碱,温度和溶剂,可以选择性地平稳地提供脱硫C–N键形成产物(N-芳基苯并咪唑)。该方案显示了潜在的合成价值,可用于制备在药物和农用化学品中可能具有活性的各种芳基苯并杂环化合物。