Boosting the photo-switchability of double-responsive water-soluble polymers by incorporating arylazopyrazole dyes

René Steinbrecher1, Peiran Zhang2, Christine M Papadakis2

  • 1Institute of Chemistry, University of Potsdam, Potsdam-Golm, Germany. laschews@uni-potsdam.de.

Chemical Communications (Cambridge, England)
|January 22, 2024
PubMed

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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...
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