Platinum(IV) Complexes: C−H Activation at Low Temperatures

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• 作者：Jemini Mamtora ; Sarah H. Crosby ; Christopher P. Newman ; Guy J. Clarkson ; Jonathan P. Rourke
• 刊名：Organometallics
• 出版年：2008
• 出版时间：November 10, 2008
• 年：2008
• 卷：27
• 期：21
• 页码：5559-5565
• 全文大小：254K
• 年卷期：v.27,no.21(November 10, 2008)
• ISSN：1520-6041

文摘

The oxidation of square-planar cyclometalated Pt(II) phenylpyridine species using the electrophilic chlorine based oxidant PhICl₂ has been studied. Rapid oxidations are observed in chloroform solvent at −40 °C leading to single products. In acetone solvent isomeric forms of the product are formed, and these are observed to isomerize at around −10 °C. The oxidation of a complex with an uncyclometalated pendant arm resulted in the very rapid cyclometalation of that arm by the resulting electrophilic Pt(IV) species.