Chemoselective Three‐Component Geminal Cross Couplings of Dihaloalkanes with Cr Catalysis: Rapid Access to Tertiary and Quaternary Alkanes via a Metal–Carbene Intermediate
作者:Sha Wang、Linhong Long、Xiaoyu Zhang、Liang Ling、Hui Chen、Xiaoming Zeng
DOI:10.1002/anie.202312856
日期:2023.10.26
The three-component geminal couplings have been achieved by design of a chromium catalytic system using dihaloalkanes to selective react with organomagnesium and chlorosilanes/alkyl tosylates. These newly developed reactions are effective for rapidly forming tertiary and quaternary alkanes via a Cr carbene intermediate with a novel inner-sphere radical coupling mechanism, showing great potential in
三组分孪生偶联是通过设计铬催化系统来实现的,该系统使用二卤代烷烃选择性地与有机镁和氯硅烷/甲苯磺酸烷基酯反应。这些新开发的反应可有效通过具有新颖内球自由基耦合机制的Cr卡宾中间体快速形成叔烷烃和季烷烃,在合成和药物化学中显示出巨大的潜力。