A general photocatalytic hydrodefluorination and defluoroalkylation of electronically-variable ArCF<sub>3</sub> by changing commercially-available arenethiolates
作者:Yuanyang Jiang、Chenxiu Han、Zipeng Guo、Zhenyang Dai、Guangchao Liang、Shuo Guo、Nathaniel K. Szymczak、Pingping Tang
DOI:10.1039/d3gc05041f
日期:——
Although defluorinative functionalization of trifluoromethylarenes has been studied by several research groups, different kinds of catalysts are required accordingly based on specific substrate families to obtain the corresponding RCF2Ar compounds. Herein, we report a general photocatalytic approach for the selective hydrodefluorination (HDF) and defluoroalkylation (DFA) of ArCF3. Using electronically-different
尽管多个研究小组对三氟甲基芳烃的脱氟官能化进行了研究,但根据特定的底物族,需要相应不同种类的催化剂才能获得相应的RCF 2 Ar化合物。在此,我们报告了一种用于ArCF 3选择性加氢脱氟(HDF)和脱氟烷基化(DFA)的通用光催化方法。使用电子不同的芳烃硫醇盐作为光敏剂,从多种电子可变的三氟甲基芳烃(包括天然产物和生物活性分子)合成了 88 种 α,α-二氟甲基化合物。我们的机理研究揭示了光诱导的电子供体-受体 (EDA) 络合,然后是硅烷辅助的 C-F 键激活。