相关实验视频

Updated: Jun 2, 2025

The Preparation and Properties of Thermo-reversibly Cross-linked Rubber Via Diels-Alder Chemistry
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The Preparation and Properties of Thermo-reversibly Cross-linked Rubber Via Diels-Alder Chemistry

Published on: August 25, 2016

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使用拓工具揭示2,5-二甲基和乙烯衍生物之间的Diels-Alder循环添加的反应机制

Mohamed Chellegui1,2, Abel Idrice Adjieufack2, Mahmoud Trabelsi1

  • 1Laboratory of Organic Chemistry (LR17ES08), Faculty of Sciences, University of Sfax, 3038, Sfax, Tunisia.

Chemphyschem : a European journal of chemical physics and physical chemistry
|January 15, 2025
PubMed
概括

使用计算方法探索了迪尔斯-阿尔德反应机制. 乙烯衍生物上的电子吸收组增强了电友性,驱动了反应并影响了选择性.

关键词:
2,5-DMF和乙烯衍生物的使用.在BET分析中,我们分析了BET.DFT计算的计算方法这几天的时间.迪尔斯阿尔德反应在 NCI NCI 的基础上.在QTAIM中,QTAIM是QTAIM.的概念 DFT 的概念.

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Efficient Construction of Drug-like Bispirocyclic Scaffolds Via Organocatalytic Cycloadditions of α-Imino γ-Lactones and Alkylidene Pyrazolones10:17

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相关概念视频

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The Diels–Alder reaction is an example of a thermal pericyclic reaction between a conjugated diene and an alkene or alkyne, commonly referred to as a dienophile. The reaction involves a concerted movement of six π electrons, four from the diene and two from the dienophile, forming an unsaturated six-membered ring. As a result, these reactions are classified as [4+2] cycloadditions.
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Cycloaddition Reactions: Overview01:16

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Cycloadditions are one of the most valuable and effective synthesis routes to form cyclic compounds. These are concerted pericyclic reactions between two unsaturated compounds resulting in a cyclic product with two new σ bonds formed at the expense of π bonds. The [4 + 2] cycloaddition, known as the Diels–Alder reaction, is the most common. The other example is a [2 + 2] cycloaddition.
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Diels–Alder Reaction Forming Cyclic Products: Stereochemistry01:28

Diels–Alder Reaction Forming Cyclic Products: Stereochemistry

The Diels–Alder reaction is one of the robust methods for synthesizing unsaturated six-membered rings. The reaction involves a concerted cyclic movement of six π electrons: four π electrons from the diene and two π electrons from the dienophile.
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Some cycloaddition reactions are activated by heat, while others are initiated by light. For example, a [2 + 2] cycloaddition between two ethylene molecules occurs only in the presence of light. It is photochemically allowed but thermally forbidden.
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Diels–Alder reactions between cyclic dienes locked in an s-cis configuration and dienophiles yield bridged bicyclic products.
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