作者:Zhang, Qi、Wu, Zhongtian、Sun, Yifan、Qiu, Xiancheng、Liu, Huiying、Wu, Xinxin、Zhu, Chen
DOI:10.1002/ejoc.202400364
日期:——
mediated allenylation protocol employing propargyl sulfides as a radical trapping methodology. An array of substituted sulfonyl allenes were successfully synthesized under mild conditions. Mechanistically, this process entails the formation of sulfonyl radicals, their subsequent addition to alkynes, the elimination of S-centered radicals, and Cl-atom abstraction, thereby facilitating the propagation of
这项工作展示了一种新颖的可见光介导的联烯基化方案,采用炔丙基硫醚作为自由基捕获方法。在温和条件下成功合成了一系列取代的磺酰基丙二烯。从机理上讲,该过程需要形成磺酰基自由基,随后将其加成到炔烃上,消除以S为中心的自由基,并夺取Cl原子,从而促进该自由基链式反应的传播。