A reductive cross-coupling of gem-difluoroalkenes with diverse unactivated and heteroatom substituted olefins through a Fe-catalyzed hydrogen atom transfer (HAT) strategy is reported. Different from the previous HAT-type olefin cross-coupling reactions, the presence of a fluorine atom in the molecule results in a stereoselective β-F cleavage, leading to a C(sp²)–C(sp³) bond formation. A wide variety of alkylated monofluoroalkenes were obtained in good efficiency with excellent Z selectivity under air- and water-tolerant reaction conditions. A similar defluorinative coupling reaction of monofluoroalkenes was also realized.

中文翻译：

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铁催化给体烯烃与宝石-二氟烯烃的脱氟交叉偶联合成烷基化一氟烯烃

据报道，通过Fe催化的氢原子转移（HAT）策略，将宝石-二氟烯烃与各种未活化的和杂原子取代的烯烃进行还原性交叉偶联。与以前的HAT型烯烃交叉偶联反应不同，分子中氟原子的存在导致立体选择性β-F裂解，导致形成C（sp ²）–C（sp ³）键。在耐空气和耐水的反应条件下，以良好的效率和优异的Z选择性获得了多种烷基化的单氟烯烃。还实现了类似的单氟烯烃的脱氟偶联反应。