The air‐stable unsymmetrical disilane Me₃Si−SiMe₂[oCON(iPr)₂C₆H₄] has been developed for bis‐silylation of alkynes. This reagent tolerates a range of functional groups, providing Z‐vinyl disilanes in high yields. It is proposed that the phenyl‐ring‐tethered amide group directs oxidative addition of Pd⁰ into the Si−Si bond, which might facilitate formation of a six‐membered Pd cycle, generating products with good to excellent regioselectivity.

中文翻译：

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Me3Si-SiMe2 [oCON（iPr）2-C6H4]：炔烃的区域和立体选择性双硅烷化的不对称乙硅烷试剂

空气稳定的不对称乙硅烷Me ₃ Si-SiMe ₂ [ o CON（i Pr）₂ C ₆ H ₄ ]已开发用于炔烃的双硅烷化反应。该试剂可耐受多种官能团，可提供高收率的Z乙烯基乙硅烷。有人建议苯环束缚的酰胺基团将Pd ⁰氧化加成到Si-Si键中，这可能有助于形成六元Pd循环，从而产生具有良好或极好的区域选择性的产物。