Effect of Counterion Structure on Rates and Diastereoselectivities in 伪,尾-Unsaturated Iminium-Ion Diels鈥揂lder Reactions

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• 作者：David Marcoux ; Pascal Bindscha虉dler ; Alexander W. H. Speed ; Anna Chiu ; Joseph E. Pero ; George A. Borg ; David A. Evans
• 刊名：Organic Letters
• 出版年：2011
• 出版时间：July 15, 2011
• 年：2011
• 卷：13
• 期：14
• 页码：3758-3761
• 全文大小：796K
• 年卷期：v.13,no.14(July 15, 2011)
• ISSN：1523-7052

文摘

The use of cyclic 伪,尾-unsaturated iminium-ion dienophiles is documented in two highly diastereoselective Diels鈥揂lder (DA) reactions. The dienophilic counterion was found to have a significant effect on reactivity.