Related Experiment Video

Updated: Jul 29, 2025

Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes
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Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes

Published on: April 1, 2013

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Synthesis, structure, and properties of switchable cross-conjugated 1,4-diaryl-1,3-butadiynes based on

Semyon V Tsybulin1, Ekaterina A Filatova1, Alexander F Pozharskii1

  • 1Department of Chemistry, Southern Federal University, Zorge str. 7, Rostov-on-Don 344090, Russian Federation.

Beilstein Journal of Organic Chemistry
|May 25, 2023
PubMed

Keywords:
1,4-diaryl-1,3-butadiynes1,8-bis(dimethylamino)naphthaleneGlaser–Hay reactioncross-conjugated systemsdonor–acceptor systems

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Structure of Conjugated Dienes01:16

Structure of Conjugated Dienes

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Conjugated dienes are compounds characterized by the presence of alternating double and single bonds. In a conjugated system like 1,3-butadiene, the unhybridized 2p orbital on each carbon overlaps continuously, allowing the π electrons to be delocalized across the entire molecule. In contrast, this type of overlap does not occur in cumulated and isolated dienes, such as 2,3-pentadiene and 1,4-pentadiene, respectively. Instead, the π electrons remain localized between the double...
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