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Updated: Jun 14, 2025

Facile Preparation of 2Z,4E-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
06:46

Facile Preparation of 2Z,4E-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate

Published on: June 21, 2017

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基于根基的抗聚变的减少性合的 Racemic 艾伦和化物

Haigen Shen1,2, Ling Yang1,2, Mingrui Xu1

  • 1Key Laboratory of Precise Synthesis of Functional Molecules of Zhejiang Province, Department of Chemistry, School of Science and Research Center for Industries of the Future, Westlake University, 310024, Hangzhou, China.

Angewandte Chemie (International ed. in English)
|September 2, 2024
PubMed
概括

这项研究引入了一种新的三重催化系统,用于以enantio-convergent方式将raceme的allen和aldehyde进行还原合. 这种方法有效地控制了轴性性,产生富含性同质醇.

关键词:
灾难的选择性是灾难的选择性.具有反选择性 (enantioselectivity) 的一个特性.一致性催化剂的同质性摄影氧催化剂的催化作用激进分子 激进分子

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Radical Halogenation: Stereochemistry01:33

Radical Halogenation: Stereochemistry

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Halogenation to form a new chiral center:
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Stereochemical Effects of Enolization

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The addition of hydrogen bromide to alkenes in the presence of hydroperoxides or peroxides proceeds via an anti-Markovnikov pathway and yields alkyl bromides.
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Alkenes via Reductive Coupling of Aldehydes or Ketones: McMurry Reaction

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This lesson delves into the aldol condensation catalyzed by bases, where aldols undergo dehydration to enals. As shown in Figure 1, the β-hydroxy aldehyde formed in a base-catalyzed aldol addition reaction dehydrates on heating to yield an unsaturated carbonyl product, which is commonly referred to as an enal.
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