可见光驱动的钯催化Dowd-Beckwith环扩展/C-C键形成串联反应。
Visible-light-driven palladium-catalyzed Dowd-Beckwith ring expansion/C-C bond formation cascade.
作者信息
Chen Li, Guo Li-Na, Liu Shuai, Liu Le, Duan Xin-Hua
机构信息
School of Chemistry, Xi'an Key Laboratory of Sustainable Energy Material Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter Xi'an Jiaotong University Xi'an Shaanxi 710049 China.
State Key Laboratory of Applied Organic Chemistry, Lanzhou University Lanzhou730000 P. R. China
出版信息
Chem Sci. 2020 Dec 9;12(5):1791-1795. doi: 10.1039/d0sc04399k.
A visible-light-induced palladium-catalyzed Dowd-Beckwith ring expansion/C-C bond formation cascade is described. A range of six to nine-membered β-alkenylated cyclic ketones possessing a quaternary carbon center were accessed under mild conditions. Besides styrenes, the electron-rich alkenes such as silyl enol ethers and enamides were also compatible, providing the desired β-alkylated cyclic ketones in moderate to good yields.
描述了一种可见光诱导的钯催化Dowd-Beckwith环扩张/C-C键形成级联反应。在温和条件下可得到一系列具有季碳中心的六元至九元β-烯基化环酮。除苯乙烯外，富电子烯烃如硅基烯醇醚和烯酰胺也适用，能以中等至良好的产率提供所需的β-烷基化环酮。
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