Reductive alkylation of aminofluorans: A simple route to intrinsically thermochromic fluorans
| Autor: | Farid Azizian, B. Mark Heron, Amanda J. Field |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Isopropyl palmitate
chemistry.chemical_classification Thermochromism genetic structures Base (chemistry) Fluoran Process Chemistry and Technology General Chemical Engineering Alkylation Chloride Acylation chemistry.chemical_compound chemistry Polymer chemistry medicine Organic chemistry Moiety sense organs medicine.drug |
| Zdroj: | Dyes and Pigments. 99:432-439 |
| ISSN: | 0143-7208 |
| DOI: | 10.1016/j.dyepig.2013.06.009 |
| Popis: | The reductive alkylation of fluoran green base with hydroxybenzaldehydes gave novel fluorans that exhibited thermochromism, reversibly changing colour from very pale pink to deep green, in methyl stearate and in microcapsules containing methyl palmitate/isopropyl palmitate without the need of an added phenolic colour developer. Acylation of fluoran green base with O -acetylsalicyloyl chloride and subsequent cleavage of the acetyl group gave a new colour former bearing an o -hydroxybenzoyl moiety which also exhibited thermochromism, reversibly changing from colourless to red. |
| Databáze: | OpenAIRE |
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