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Updated: Jul 17, 2026

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

Si{100}c{4 x 2}上に非対称なダイマーを持つアルケーン分子による地域選択性サイクル添加反応

Kazuhiro Oguchi1, Masashi Nagao, Hirobumi Umeyama

  • 1Institute for Solid State Physics, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa-city, Chiba 277-8581, Japan.

Journal of the American Chemical Society
|February 1, 2007
PubMed
まとめ

研究者は,シリコンの表面でのアルケンの反応を研究した. 彼らは,マルコヴニコフがマルコヴニコフだったことを発見した.

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[4+2] Cycloaddition of Conjugated Dienes: Diels–Alder Reaction

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: Overview

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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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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Electrophilic 1,2- and 1,4-Addition of HX to 1,3-Butadiene

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