We described a Rh(III)-catalyzed and solvent-controlled C–H bond functionalization of 2-(1H-pyrazol-1-yl)pyridine with internal alkynes, which provided a straightforward way for the divergent synthesis of either C–H alkenylation products or indazole products in moderate to good yields. Control experiments were conducted, and a mechanism involving the rollover intermediates was proposed.

中文翻译：

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Rh（III）催化的带有内部炔烃的2-（1H-吡唑-1-基）吡啶的可转换CH功能

我们描述了带有内部炔烃的Rh（III）催化的2-（1 H-吡唑-1-基）吡啶的Rh（III）催化和溶剂控制的CH键官能化，这为任一CH的发散合成提供了直接的方法烯基化产物或吲唑产物，产率中等至良好。进行了控制实验，并提出了涉及过渡中间体的机理。