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Updated: Jul 11, 2025

Chemoselective Modification of Viral Surfaces via Bioorthogonal Click Chemistry
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Chemoselective Modification of Viral Surfaces via Bioorthogonal Click Chemistry

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利用点击化学:同质黄金的骨干后功能化 (I) 1,2,3-triazole-5-ylidene复合物

Leon F Richter1, Fernanda Marques2, João D G Correia2

  • 1Technical University of Munich, TUM School of Natural Sciences, Department of Chemistry and Catalysis Research Centre, Molecular Catalysis, Lichtenbergstr. 4, 85748, Garching bei München, Germany. fritz.kuehn@ch.tum.de.

Dalton transactions (Cambridge, England : 2003)
|November 9, 2023
PubMed
概括

研究人员用一种新型的三醇配体合成了一种化物功能化黄金 (I) 复合物. 这种复合物可以通过点击化学轻松修改,保留对人类癌细胞的强有力的抗癌活性.

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Preparation of 1° Amines: Hofmann and Curtius Rearrangement Mechanism01:26

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The Hofmann and Curtius rearrangement reactions can be applied to synthesize primary amines from carboxylic acid derivatives such as amides and acyl azides. In the Hofmann rearrangement, a primary amide undergoes deprotonation in the presence of a base, followed by halogenation to generate an N-haloamide. A second proton abstraction produces a stabilized anionic species, which rearranges to an isocyanate intermediate via an alkyl group migration from the carbonyl carbon to the neighboring...
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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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Different monodentate and polydentate ligands are used as complexing agents in complexometric titration reactions. The formation of complexes by mono- and bidentate ligands involves two or more intermediate steps, limiting their use as complexing agents. In comparison, polydentate ligands can form complexes with metal ions in a single-step process, facilitating sharper end points. This means polydentate ligands, such as amino carboxylic acid derivatives, are most commonly employed in...
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