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Updated: May 26, 2026

Synthesis of pH Dependent Pyrazole, Imidazole, and Isoindolone Dipyrrinone Fluorophores using a Claisen-Schmidt Condensation Approach
14:11

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

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[18]/[20]π

Atsuya Muranaka1, Shino Ohira, Daisuke Hashizume

  • 1Advanced Elements Chemistry Research Team, RIKEN-ASI, Wako-shi, Saitama 351-0198, Japan. atsuya-muranaka@riken.jp

Journal of the American Chemical Society
|December 14, 2011
PubMed
まとめ

研究者らは,18π電子系で新種の芳香性ヘミポルフィラジンを合成した. spetroscopyとX線分析によって特徴づけられるこの新しい分子は,そのユニークな構造と可逆的還元反応行動により,電子アプリケーションの可能性を示しています.

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Redox Reactions01:24

Redox Reactions

Oxidation-reduction or redox reactions involve the transfer of electrons from one molecule or atom to another. When an atom gains an electron, another atom must lose an electron, meaning oxidation and reduction must occur together. Since the redox occurs in pairs, the atom that gets oxidized is also called the reducing agent or reductant, and the atom that is reduced is also called the oxidizing agent or oxidant. A straightforward way to remember the definitions of oxidation and reduction is...
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Aryldiazonium Salts to Azo Dyes: Diazo Coupling

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 position.