Complete Characterization of a Chiral Lewis Acid-Product Complex for the Enantioselective Diels-Alder Reaction between Methacrolein and Cyclopentadiene: Mechanistic Considerations

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• 作者：Daniel Carmona ; M. Pilar Lamata ; Fernando Viguri ; Ricardo Rodr&iacute ; guez ; Carmen Barba ; Fernando J. Lahoz ; M. Luisa Mart&iacute ; n ; Luis A. Oro ; Luis Salvatella
• 刊名：Organometallics
• 出版年：2007
• 出版时间：December 3, 2007
• 年：2007
• 卷：26
• 期：25
• 页码：6493 - 6496
• 全文大小：87K
• 年卷期：v.26,no.25(December 3, 2007)
• ISSN：1520-6041

文摘

The Diels-Alder reaction between methacrolein andcyclopentadiene catalyzed by [(⁵-C₅Me₅)Ir{(R)-Prophos}(methacrolein)][SbF₆]₂ is inhibited by the products, this featureallowing, for the first time, the spectroscopic and crystallographic characterization of the major Lewis acid-productintermediate involving an enal as a dienophile.