Herein, we present a transition-metal-free, easy handling protocol for regioselective carboxylation of gem-difluorostyrenes with sodium formate as the C1 source. 30 examples of α-fluoracrylates were obtained in yields of 30 to 80% under these conditions. A defluorinative monofluorovinyl intermediate and consecutive photoinduced electron transfer mechanism were proposed after mechanism investigation
在此,我们提出了一种不含过渡
金属、易于操作的方案,用于以
甲酸钠作为 C1 源对偕二
氟苯乙烯进行区域选择性羧化。在这些条件下以30%至80%的收率获得了30个α-
氟丙烯酸酯实例。经过机理研究,提出了一种脱
氟单
氟乙烯基中间体和连续光致电子转移机制。