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

被引：23

作者：

Azizian, Farid ^{[1
]}

Field, Amanda J. ^{[2
]}

Heron, B. Mark ^{[3
]}

机构：

[1] Sun Chem Ltd, St Mary Cray Res, Orpington BR5 3PP, Kent, England

[2] Univ Leeds, Sch Chem, Dept Colour Sci, Leeds LS2 9JT, W Yorkshire, England

[3] Univ Huddersfield, Dept Chem & Biol Sci, Sch Appl Sci, Huddersfield HD1 3DH, W Yorkshire, England

来源：

DYES AND PIGMENTS | 2013年 / 99卷 / 02期

关键词：

Thermochromism; Fluoran; Colour former; Synthesis; Reductive alkylation; Functional dye; SODIUM-BOROHYDRIDE; BISPHENOL-A; DEVELOPER INTERACTIONS; DYE-DEVELOPER; REARRANGEMENT; AMINATION; EXPOSURE; MEDIA; BASE;

D O I：

10.1016/j.dyepig.2013.06.009

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

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. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：432 / 439

页数：8

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