作者:Velabo Mdluli、Dan Lehnherr、Yu‐hong Lam、Yining Ji、Justin A. Newman、Jungchul Kim
DOI:10.1002/adsc.202300257
日期:2023.11.21
method to access sulfones from aryl halides and sodium alkylsulfinates in the presence of CuCl is reported. Regio- and chemoselectivity for the sulfonylation is observed for polyhalogenated arenes. Mechanistic studies indicate that a copper sulfinate reagent is formed in situ from CuCl and sodium sulfinate based on NMR experiments. Potential reaction intermediates, including excited state aryl halides
报道了一种在 CuCl 存在下从芳基卤化物和烷基亚磺酸钠制备砜的光化学合成方法。对于多卤代芳烃,观察到磺酰化的区域选择性和化学选择性。机理研究表明,基于 NMR 实验,亚磺酸铜试剂是由 CuCl 和亚磺酸钠原位形成的。使用密度泛函理论计算研究了潜在的反应中间体,包括激发态芳基卤化物,并揭示了能量上可接近的非平面三重态几何结构。