The [Cu(OTf)]₂·C₆H₆ catalyzed cascade intermolecular addition–intramolecular cyclization reaction of easily prepared 2-propynol phenyl azides and diarylphosphine oxides was developed. This novel reaction leads to simultaneous formation of one C–N and two C–P bonds in a single step to give bisphosphorylated indole derivatives under mild conditions in moderate to good yields.

中文翻译：

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铜（I）催化2-丙炔酚叠氮化物和二芳基膦氧化物的级联分子内环化反应，用于合成双磷酸化的吲哚衍生物

开发了[Cu（OTf）] ₂ ·C ₆ H ₆催化的2-丙炔苯叠氮化物和二芳基膦氧化物的级联分子间加成-分子内环化反应。这种新颖的反应可在一个步骤中同时形成一个C–N和两个C–P键，从而在温和条件下以中等至良好的收率得到双磷酸化的吲哚衍生物。