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Updated: Jul 24, 2025

Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach
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合成,晶体结构,DFT和光灭研究 新型注射器化物衍生水inyl-imidazole 基于希夫基 化学传感器

Vanshika Sharma1, Meman Sahu1, Dinesh De1

  • 1Department of Chemistry, Guru GhasidasVishwavidyalaya, C.G, Bilaspur, India.

Journal of fluorescence
|July 3, 2023
PubMed
概括

一个新的光传感器检测无机离子,如化物和过渡金属. 这种灵敏的传感器来自注射器的化和伊米达,对特定的离子显示出高性能,使环境监控成为可能.

关键词:
在DFT研究中,研究人员研究了DFT.光灭的光灭方式基尼尔 - 伊米达 (Hydrazinyl-imidazole) 是一种基尼尔 - 伊米达的化合物.这里是船只基地.化学传感器是一种化学传感器.晶体结构 晶体结构

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Primary amines react with carbonyl compounds—aldehydes and ketones—to generate imines. Imines consist of a C=N double bond and are named Schiff bases after its discoverer—the German chemist Hugo Schiff. On the other hand, secondary amines react with carbonyl compounds to give enamines. In enamines, the presence of a C=C double bond adjacent to the nitrogen atom leads to the delocalization of the lone pair.
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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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Arenediazonium substitution reactions occur when the diazonium group is substituted by various functional groups such as halides, hydroxyl, nitrile, etc. For instance, arenediazonium salts react with copper(I) salts of chloride, bromide, or cyanide to form corresponding aryl chlorides, bromides, and nitriles. These reactions are named Sandmeyer reactions. Although the mechanism of this reaction is complicated, as illustrated in Figure 1, they are believed to progress via an aryl copper...
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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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