Tripyrrolidinophosphoric Acid Triamide as an Activator in Samarium Diiodide Reductions

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• 作者：Chriss E. McDonald ; Jeremy D. Ramsey ; David G. Sampsell ; Julie A. Butler ; Michael R. Cecchini
• 刊名：Organic Letters
• 出版年：2010
• 出版时间：November 19, 2010
• 年：2010
• 卷：12
• 期：22
• 页码：5178-5181
• 全文大小：165K
• 年卷期：v.12,no.22(November 19, 2010)
• ISSN：1523-7052

文摘

The electrochemical and spectrophotometric characterization of the complex formed from samarium diiodide and 4 equiv of tripyrrolidinophosphoric acid triamide (TPPA) is presented. Kinetic studies indicate that the SmI₂/TPPA complex possesses reactivity greater than the complex formed between samarium diiodide and 4 equiv of HMPA. Examples of the use of SmI₂/TPPA in synthesis are presented.