m-C_Ar–H bond functionalization of tertiary phosphines was developed using [Ru(p-cymene)Cl₂]₂ as a catalyst. Desired product structures were confirmed by single-crystal X-ray diffraction. Mechanistic experiments indicated that m-C_Ar–H bond functionalization was a radical reaction and that a hexagonal ruthenacycle complex was a crucial intermediate in the process. Therefore, this study provides a novel method for the late-stage meta-position modification of biphenyl monophosphine ligands.

中文翻译：

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钌催化的叔膦的m- C _Ar -H键烷基化和二氟甲基化

使用[Ru（p- Cymene）Cl ₂ ] ₂作为催化剂，开发了叔膦的m -C _Ar -H键官能化。通过单晶X射线衍射确认了所需的产物结构。机理实验表明，m -C _Ar -H键官能化是一个自由基反应，六角形钌环络合物是该过程中的关键中间体。因此，本研究提供了后期的新颖的方法的元联苯单膦配位体的位上修饰。