Synthesis and properties of bis(hetaryl)azo dyes

被引：76

作者：

Wang, MX ^{[1
]}

Funabiki, K ^{[1
]}

Matsui, M ^{[1
]}

机构：

[1] Gifu Univ, Fac Engn, Dept Mat Sci & Technol, Gifu 5011193, Japan

来源：

DYES AND PIGMENTS | 2003年 / 57卷 / 01期

关键词：

hetaryl azo compounds; UV-vis absorption spectrum; solvatochromism; thermostability; photostability;

D O I：

10.1016/S0143-7208(03)00011-1

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Unsymmetrical and symmetrical bis(hetaryl)azo dyes were prepared by diazotisation-coupling and oxidation reactions in low to good yields. Their absorption maxima were observed in the range of 427-631 nm, being more bathochromic than the corresponding non-hetarylazo derivatives. No remarkable difference of decomposition temperature in the bis(hetaryl)azo dyes was observed except for the pyridone derivative. The photofading of benzothiazolylazo derivatives in ethanol in air occurred by way of reductive processes. (C) 2003 Elsevier Science Ltd. All rights reserved.

引用

页码：77 / 86

页数：10

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