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Updated: Jan 10, 2026

Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions
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Cercosporin-Photocatalyzed [4+1]- and [4+2]-Annulations of Azoalkenes Under Mild Conditions

Published on: July 17, 2020

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多功能N替代的2-二二醇衍生物:单一氧气生成,蛋白质结合,光激活的抗癌和抗菌活性

Hanan A Mohamed1,2, Ayman A Abdel-Shafi3, Hideyuki Miyatake4

  • 1Nanoscience Program, Faculty of Basic and Applied Sciences, Egypt-Japan University of Science and Technology (E-JUST) New Borg El-Arab City Alexandria Egypt mohamed.elkhouly@ejust.edu.eg.

RSC advances
|November 20, 2025
PubMed
概括

四种N替代的2 - 皮里迪尔佐醇衍生物显示出作为多功能剂的前景. 这些化合物表现出显著的蛋白质相互作用,光增强的抗菌活性,以及对癌细胞的强烈光细胞毒性,以及用于潜在的光动力学治疗的单点氧生成.

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Aryldiazonium Salts to Azo Dyes: Diazo Coupling01:11

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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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