We report here cobalt−N-heterocyclic carbene catalytic systems for the intramolecular decarbonylative coupling through the chelation-assisted C−C bond cleavage of acylindoles and diarylketones. The reaction tolerates a wide range of functional groups such as alkyl, aryl, and heteroaryl groups, giving the decarbonylative products in moderate to excellent yields. This transformation involves the cleavage of two C−C bonds and formation of new C−C bond without the use of noble metals, thus reinforcing the potential application of decarbonylation as an effective tool for C−C bond formation.

中文翻译：

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钴催化通过 C−C 键断裂实现酰基吲哚和二芳基酮的分子内脱羰偶联


我们在这里报告了钴-N-杂环卡宾催化系统，通过酰基吲哚和二芳基酮的螯合辅助CC键裂解进行分子内脱羰偶联。该反应可耐受多种官能团，例如烷基、芳基和杂芳基，从而以中等至优异的产率产生脱羰产物。这种转变涉及两个 C−C 键的断裂并在不使用贵金属的情况下形成新的 C−C 键，从而增强了脱羰基作为 C−C 键形成的有效工具的潜在应用。