Electrochemical Sulfenylation of 4-Hydroxycoumarins with Aryl Thiols Catalyzed by Potassium Iodide
作者:Jiali Jin、Lingmin Zhao、Chao Zhang、Xin Liu、Wenxu Yin、Zhenlu Shen、Meichao Li
DOI:10.1149/1945-7111/abe28f
日期:2021.2.1
A KI-catalyzed indirect electrochemical oxidative method for the synthesis of sulfenylated 4-hydroxycoumarins via cross-coupling of 4-hydroxycoumarins and aryl thiols at a low potential has been reported. The electrocatalytic activity of KI for sulfenylation of 4-hydroxycoumarin was investigated by cyclic voltammetry. In situ FTIR data reflected the structural change of functional groups during the
已经报道了KI-催化间接电化学氧化方法,该方法通过在低电势下将4-羟基香豆素与芳基硫醇交叉偶联来合成亚磺酰化的4-羟基香豆素。通过循环伏安法研究了KI对4-羟基香豆素亚磺酰化的电催化活性。现场FTIR数据反映了反应过程中官能团的结构变化。通过控制实验已经揭示了涉及到中间体1,2-双(4-氯苯基)二硫烷生成的电化学亚磺化机理。在最佳反应条件下,以中等至优异的收率和良好的官能团耐受性获得了各种亚磺酰化的4-羟基香豆素。