N, N'-Disubstituido Indigo como fotointerruptores de luz roja fácilmente disponibles con semividas térmicas

Chung-Yang Huang1, Aurelio Bonasera1, Lachezar Hristov1

  • 1Department of Chemistry & IRIS Adlershof, Humboldt-Universität zu Berlin , Brook-Taylor-Strasse 2, 12489 Berlin, Germany.

Resumen

Los investigadores han desarrollado nuevos tintes índigo que cambian de color con la luz roja y son más estables térmicamente. Estos tintes fotocrómicos ofrecen propiedades ajustables para aplicaciones avanzadas en ciencia y tecnología.

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Aryldiazonium Salts to Azo Dyes: Diazo Coupling01:11

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...
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