首页> 外文期刊>Chemistry: A European journal >Enantioselective Allylation of (2E,4E)-2,4-Dimethylhexadienal: Synthesis of (5R,6S)-(+)-Pteroenone
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Enantioselective Allylation of (2E,4E)-2,4-Dimethylhexadienal: Synthesis of (5R,6S)-(+)-Pteroenone

机译:(2E,4E)-2,4-二甲基己二醛的对映选择性烯丙基化:(5R,6S)-(+)-戊烯酮的合成

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摘要

Allylation, trans- and cis-crotylation of (2E,4E)-2,4-dimethylhexadienal, a representative alpha,beta,gamma,delta-unsaturated aldehyde, was carried out under different catalytic and stoichiometric conditions. The reactions catalyzed by organocatalysts TRIP-PA and N,N'-dioxides gave the best results with respect to yields, asymmetric induction, and catalyst load in comparison to other procedures. The developed methodology was applied in the enantioselective synthesis of (5R,6S)-(+)-pteroenone, a defensive metabolite (ichthyodeterrent) of the Antarctic pteropod Clione antarctica.
机译:(2E,4E)-2,4-二甲基己二烯醛(一种代表性的α,β,γ,δ-不饱和醛)的烯丙基化,反式和顺式-丁酰化在不同的催化和化学计量条件下进行。与其他方法相比,有机催化剂TRIP-PA和N,N'-二氧化物催化的反应在收率,不对称诱导和催化剂负载方面提供了最佳结果。所开发的方法应用于(5R,6S)-(+)-戊烯酮的对映选择性合成,这是一种南极翼足​​类Clione南极的防御性代谢产物(鱼类去离子)。

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