Carbon鈥揅arbon Bond Formation from Azaallyl and Imine Couplings about Metal鈥揗etal Bonds

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• 作者：Elliott B. Hulley ; Peter T. Wolczanski ; Emil B. Lobkovsky
• 刊名：Journal of the American Chemical Society
• 出版年：2011
• 出版时间：November 16, 2011
• 年：2011
• 卷：133
• 期：45
• 页码：18058-18061
• 全文大小：857K
• 年卷期：v.133,no.45(November 16, 2011)
• ISSN：1520-5126

文摘

Typical C鈥揅 bond-forming processes feature oxidative addition, insertion, and reductive elimination reactions. An alternative strategy toward C鈥揅 bond formation involves the generation of transient radicals that can couple at or around one or more metal centers. Generation of transient azaallyl ligands that reductively couple at CH positions possessing radical character is described. Two C鈥揅 bonds form, and the redox non-innocence of the resulting pyridine-imines may be critical to formation of a third C鈥揅 bond via dinuclear di-imine oxidative coupling. Unique metal鈥搈etal bonds are a consequence of the chelation.