The presence of nitrogen atom in a wide variety of organic compounds called for the use of powerful C−H activation strategy in the C−N bond formation. Pentamethylcyclopentadienyl (Cp*) based, high‐valent, group 9 transition‐metal complexes have shown a great potential as catalysts in the C−H activation/functionalization over the years. This minireview summarizes recent progress made in the context of C−N bond formation via catalytic (sp²)C−H activation with Cp*M(III) (M=Co, Rh and Ir) catalysts. A general plausible mechanism is briefly discussed at the beginning, and then results are arranged according to metal cobalt, rhodium and iridium, respectively.

中文翻译：

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通过高价基团9 Cp * M（III）催化的定向sp2 CH活化C-N键的最新进展

各种有机化合物中氮原子的存在要求在CN键形成中使用强大的CH活化策略。多年来，基于五甲基环戊二烯基（Cp *）的高价9族过渡金属配合物在CH活化/官能化中显示出巨大的催化剂潜力。这份小型综述总结了通过Cp * M（III）（M = Co，Rh和Ir）催化剂催化（sp ²）CH活化形成C-N键的最新进展。首先简要讨论了一般可行的机理，然后分别根据金属钴，铑和铱来排列结果。