A redox-economic method for the direct coupling of olefins that uses an inexpensive iron catalyst and a silane reducing agent is reported. Thus, unactivated olefins can be joined directly to electron-deficient olefins in both intra- and intermolecular settings to generate hindered bicyclic systems, vicinal quaternary centers, and even cyclopropanes in good yield. The reaction is not sensitive to oxygen or moisture and has been performed on gram-scale. Most importantly, it allows access to many compounds that would be difficult or perhaps impossible to access using other methods.

中文翻译：

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实用的催化还原烯烃偶联

报道了一种使用廉价铁催化剂和硅烷还原剂直接偶联烯烃的氧化还原经济方法。因此，未活化的烯烃可以在分子内和分子间环境中直接与缺电子烯烃连接，以产生高产率的受阻双环系统、邻季中心，甚至环丙烷。该反应对氧气或水分不敏感，并且已在克级规模上进行。最重要的是，它允许访问使用其他方法难以或可能无法访问的许多化合物。