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Reductive alkylation of aminofluorans: A simple route to intrinsically thermochromic fluorans

Azizian, Farid, Field, Amanda J. and Heron, B. Mark (2013) Reductive alkylation of aminofluorans: A simple route to intrinsically thermochromic fluorans. Dyes and Pigments, 99 (2). pp. 432-439. ISSN 0143-7208

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Abstract

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.

Item Type: Article
Subjects: Q Science > QD Chemistry
Schools: School of Applied Sciences
Related URLs:
Depositing User: Mark Heron
Date Deposited: 15 Jul 2013 09:08
Last Modified: 15 Jul 2013 09:08
URI: http://eprints.hud.ac.uk/id/eprint/17953

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