Arylgold(I) Complexes from Base-Assisted Transmetalation: Structures, NMR Properties, and Density-Functional Theory Calculations

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• 作者：David V. Partyka ; Matthias Zeller ; Allen D. Hunter ; Thomas G. Gray
• 刊名：Inorganic Chemistry
• 出版年：2012
• 出版时间：August 6, 2012
• 年：2012
• 卷：51
• 期：15
• 页码：8394-8401
• 全文大小：318K
• 年卷期：v.51,no.15(August 6, 2012)
• ISSN：1520-510X

文摘

The synthesis of gold(I) complexes of the type LAuR (L = PCy₃, IPr; R = aryl; IPr = 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) starting from LAuX (X = Br, OAc) and boronic acids in the presence of Cs₂CO₃ has been investigated. The reactions proceed smoothly in good to excellent yields over the course of 24鈥?8 h in isopropyl alcohol at 50鈥?5 掳C. The aryl groups include a variety of functionalities and steric bulk, and in two cases, are heterocyclic. All of the products have been characterized by multinuclear NMR spectroscopy and elemental analysis and most by X-ray crystallography. This work affirms that, almost without exception, base-assisted auration is a useful and reliable way to form gold鈥揷arbon bonds.