Copper-Catalyzed Site-Selective C(sp2)–H Alkynylation of Allenes
Xiu Duan,
Qihao Jin,
Kaifeng Wang
et al.
Abstract:Conjugated allenynes serve as prominently featured structural units in various natural products. However, the absence of an efficient and adaptable synthesis has hindered their broader application in synthetic endeavors and biological investigations. In terms of atom-and step-economy, there is an urgent need for an efficient strategy with a broader substrate scope compared to previous reports. Herein, we report a copper-catalyzed allenic C(sp 2 )−H alkynylation of an array of allenes with exceptional site sele… Show more
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