AbstractCatalytic enantioselective intermolecular C−H silylation offers an efficient approach for the rapid construction of chiral organosilicon compounds, but remains a significant challenge. Herein, a new type of chiral silyl ligand is developed, which enables the first iridium‐catalyzed atroposelective intermolecular C−H silylation reaction of 2‐arylisoquinolines. This protocol features mild reaction conditions, high atom economy, and remarkable yield with excellent stereoselectivity (up to 99 % yield, 99 % ee), delivering enantioenriched axially chiral silane platform molecules with facile convertibility. Key to the success of this unprecedented transformation relies on a novel chiral PSiSi‐ligand, which facilitates the intermolecular C−H silylation process with perfect chem‐, regio‐ and stereo‐control via a multi‐coordinated silyl iridium complex.
摘要催化对映选择性分子间 C-H 硅烷化反应为快速构建手性有机硅化合物提供了一种有效方法,但仍然是一项重大挑战。本文开发了一种新型手性硅配体,首次实现了铱催化 2-芳基异喹啉的对映选择性分子间 C-H 硅烷化反应。该反应具有反应条件温和、原子经济性高、收率显著以及出色的立体选择性(收率高达 99%,ee 为 99%)等特点,可提供对映体丰富的轴向手性硅烷平台分子,且易于转化。这种史无前例的转化之所以能取得成功,关键在于一种新型手性 PSiSi- 配体,它通过多配位硅铱络合物促进了分子间 C-H 硅烷化过程,实现了完美的化学、区域和立体控制。