Oxygen-promoted Pd(II) catalysis for the coupling of organoboron compounds and olefins.
Oxygen-promoted Pd(II) catalysis for the coupling of organoboron compounds and olefins.
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DOI：
10.1002/chin.200342094
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发表时间：
2003-05
期刊：
影响因子：
5.2
通讯作者：
Y. C. Jung;R. Mishra;C. H. Yoon;K. W. Jung
中科院分区：
文献类型：
--
作者：
Y. C. Jung;R. Mishra;C. H. Yoon;K. W. Jung
本文报道了一种温和有效的 Pd(II) 催化作用，可导致多种有机硼化合物和烯烃之间形成碳-碳键。在催化循环过程中，使用分子氧将所得 Pd(0) 物质再氧化回 Pd(II)。这种氧气方案促进了所需的 Pd(II) 催化，同时阻碍了竞争性 Pd(0) 催化途径，例如 Heck 或 Suzuki 偶联。 [反应：见正文]
Reported herein is a mild and efficient Pd(II) catalysis, leading to the formation of carbon-carbon bonds between a broad spectrum of organoboron compounds and alkenes. Molecular oxygen was employed to reoxidize the resultant Pd(0) species back to Pd(II) during catalytic cycles. This oxygen protocol promoted the desired Pd(II) catalysis, whereas it retarded competing Pd(0) catalytic pathways such as Heck or Suzuki couplings. [reaction: see text]