Cyclopentadienone iron carbonyl complexes have been applied in alkylation of indoles with various benzylic alcohols, aliphatic alcohols (butanol, ethanol, methanol and 2‐methylpentanol) via the hydrogen autotransfer strategy in mild reaction conditions. Experimental works highlight the role of the bifunctional iron complexes and the base. These iron complexes demonstrated a broad applicability in mild conditions and extended the scope of substrates in iron catalyzed C−C bond formation.

中文翻译：

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双功能铁配合物催化吲哚烷基化

环戊二烯酮羰基铁配合物已通过氢的自动转移策略在温和的反应条件下与各种苄醇，脂族醇（丁醇，乙醇，甲醇和2-甲基戊醇）进行吲哚烷基化反应。实验工作突出了双功能铁配合物和碱的作用。这些铁络合物在温和条件下显示出广泛的适用性，并且在铁催化的C-C键形成中扩展了底物的范围。