3‐Phosphinoylindoles are important components of biological active natural products and materials in pharmaceuticals. Herein, a new approach for the synthesis of 3‐phosphinoylindoles has been established by a Rh(III)‐catalyzed cyclization from readily accessible (2‐azidostyryl)diphenylphosphine oxides. This intramolecular transformation occurs through a unique phosphine oxide group migration and offers a straightforward route to rebuild sp² C−P bond and construct the indole ring in single step.

中文翻译：

---

Rh（III）催化的氧化膦迁移反应：3-膦酰基吲哚的选择性合成

3-膦酰基吲哚是药物中生物活性天然产物和材料的重要组成部分。本文中，通过Rh（III）催化的环化反应，从易于获得的（2-叠氮基苯乙烯基）二苯基膦氧化物建立了一种新的3-膦酰基吲哚合成方法。这种分子内转化是通过独特的氧化膦基团迁移发生的，并提供了直接重建sp ² C-P键和一步构建吲哚环的直接途径。