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Updated: Jul 13, 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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吸收NIR1,1,4,4-tetracyanobuta-1,3-diene-和Dicyanoquinodimethane-功能化的捐赠者-受体提亚衍生物:合成和表征

Pankaj Kumar Gupta1, Faizal Khan1, Rajneesh Misra1

  • 1Department of Chemistry, Indian Institute of Technology Indore Indore, Madhya Pradesh 453552, India.

The Journal of organic chemistry
|October 11, 2023
PubMed
概括

具有蓝基受体的新型表氨酸衍生物具有可调节的光物理和电化学特性. 更强的受体导致红移吸收和稳定LUMO,影响HOMO-LUMO差距.

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The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the...
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Nitrous acid, a weak acid, is prepared in situ via the reaction of sodium nitrite with a strong acid under cold conditions. This nitrous acid prepared in situ reacts with primary arylamines to form arenediazonium salts. Such reactions are known as diazotization reactions. As shown in Figure 1, the formation of arenediazonium salts begins with the decomposition of nitrous acid in an acidic solution to give nitrosonium ions.
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Characteristics of the diene
Conformation
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