Photocatalyst-free visible-light-promoted C(sp<sup>2</sup>)–P coupling: efficient synthesis of aryl phosphonates
作者:Shiqi Xiang、Min Li、Zhen Xia、Chen Fang、Wen Yang、Wei Deng、Ze Tan
DOI:10.1039/d3ob01987j
日期:——
A novel and efficient method for the synthesis of aryl phosphonates from aryl halides and trialkylphosphites via EDA complex-based photochemistry has been developed. It is demonstrated that aryl radicals, generated from the photoexcitation of the EDA complex formed by aryl halide and potassium thioacetate, could be intercepted with trialkylphosphite to produce the corresponding aryl phosphonates in
开发了一种通过基于 EDA 络合物的光化学从芳基卤化物和亚磷酸三烷基酯合成芳基膦酸酯的新颖且有效的方法。结果表明,由芳基卤化物和硫代乙酸钾形成的 EDA 络合物光激发产生的芳基自由基可以用亚磷酸三烷基酯拦截,以中等至良好的收率生成相应的芳基膦酸酯。值得注意的是,该反应在室温下进行,没有任何过渡金属催化剂、氧化剂和光催化剂,表现出高效率、高选择性和操作简单。