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Updated: Mar 24, 2026

Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach
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Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach

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アリラゾピラゾールは,サイクロデクストリンベースの超分子システムにおける光反応性分子スイッチとして

Lucas Stricker1, Eva-Corinna Fritz1, Martin Peterlechner2

  • 1Organic Chemistry Institute and Center for Soft Nanoscience, Westfälische Wilhelms-Universität Münster , Corrensstrasse 40, 48149 Münster, Germany.

Journal of the American Chemical Society
|March 15, 2016
PubMed
まとめ

調節可能な分子スイッチとして水溶性アリラゾピラゾール (AAP) を開発した. これらのAAPはサイクロデクストリンと光反応性複合体を形成し,高度な光反応性システムの可能性を示している.

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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 para...
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The absorption of UV–visible light by conjugated systems causes the promotion of an electron from the ground state to the excited state. Consequently, photochemical electrocyclic reactions proceed via the excited-state HOMO rather than the ground-state HOMO. Since the ground- and excited-state HOMOs have different symmetries, the stereochemical outcome of electrocyclic reactions depends on the mode of activation; i.e., thermal or photochemical.
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