The synthesis and solvatochromic properties of some novel heterocyclic disazo dyes derived from barbituric acid

被引：41

作者：

Karci, Fati ^{[1
]}

Karci, Fikret

机构：

[1] Pamukkale Univ, Fac Sci Arts, Dept Chem, Denizli, Turkey

[2] Pamukkale Univ, Higher Vocat Sch Denizli, Chem Programme, Denizli, Turkey

来源：

DYES AND PIGMENTS | 2008年 / 77卷 / 02期

关键词：

barbituric acid; azo barbituric acid; disazo dyes; pyrazole; absorption properties; diazo-coupling reaction;

D O I：

10.1016/j.dyepig.2007.07.009

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

5-Amino-4-arylazo-3-methy]-IH-pyrazoles were diazotised and coupled with barbituric acid to provide 13 novel heterocyclic disazo barbituric acid dyes that were characterized by elemental analysis and spectral methods. The effects of varying the pH and solvent on the absorption of the dyes substituted with electron-withdrawing and electron-donating groups at their o-, m-, p-position were examined in detail. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：451 / 456

页数：6

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