A facile syntheses and absorption characteristics of some monoazo dyes in bis-heterocyclic aromatic systems part II:: syntheses of 4-(p-substituted) phenyl-2-(2-pyrido-5-yl and 5-pyrazolo-4-yl)azo-thiazole derivatives

被引：49

作者：

Yen, MS ^{[1
]}

Wang, IJ ^{[1
]}

机构：

[1] Natl Taiwan Univ Sci & Technol, Dept Polymer Engn, Taipei 10772, Taiwan

来源：

DYES AND PIGMENTS | 2004年 / 63卷 / 01期

关键词：

2-aminothiazole; pyridone; pyrazolone; bis-hetarylazo dyes;

D O I：

10.1016/j.dyepig.2003.12.011

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The synthesis of 2-amino-4-(p-substituted)phenyl-thiazole derivatives has been carried out by treatment of substituted acetophenones with thiourea and iodide as catalyst. Diazotization and coupling with 2-pyridone and 5-pyrazolone derivatives gave a series of bis-hetaryl monoazo dyes. The structures of new azo dyes were confirmed by analytical and spectral data. The solvatochromism of dyes was evaluated with respect to spectroscopic properties in various solvents. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：1 / 9

页数：9

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