Heliyon· 2020Q1· Review
Classifications, properties, recent synthesis and applications of azo dyes
- 990citations
- Q1SCImago
- 2020year
Short summary
This review details azo dye classifications based on azo/functional groups, their chemical properties (reactivity, isomerization, tautomerism), recent synthesis methods, and applications, including Gewald's reaction for new azo dye synthesis.
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Key points
- Azo dyes are classified based on the number of azo groups and functional groups.
- Key chemical properties discussed include reactivity, isomerization, and tautomerism.
- Recent synthesis methods and azo dye/polymer conjugation mechanisms are reviewed.
- Gewald's reaction is highlighted for its application in synthesizing new azo dyes.
AI-generated from the title and abstract; the full text is not read.
Abstract
In this work, we have presented a very detailed review of the different classification of azo dyes as a function of the number of azo groups and the appropriate functional groups. Then we pointed out some chemical properties of these dyes such as reactivity, isomerization and tautomerism and listed. In the following, we have summarized some recent syntheses of azo dyes and the mechanism of azo dye/polymer conjugation. Finally, we indicate the principle of Gewald's reaction and its application to the synthesis of new azo dyes.
The authors' abstract, as published at the source. Heliyon, 2020 · DOI ↗
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