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Preparation of photocontrollable, nontoxicity complex of phenylazophenylalanine modified CdS quantum dots with

Yingying Li1, Zhipeng He, Peigen Zhang

  • 1College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Naniing 210016, Jiangsu, China.

Journal of Nanoscience and Nanotechnology
|April 1, 2010
PubMed

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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 position.