Synthesis of new 5-thiazolyl azo-disperse dyes for dyeing polyester fabrics

被引：65

作者：

Metwally, MA

Abdel-latif, E

Amer, FA

Kaupp, G ^{[1
]}

机构：

[1] Univ Oldenburg, FB 9, D-2900 Oldenburg, Germany

[2] Univ Mansoura, Fac Sci, Dept Chem, Mansoura, Egypt

来源：

DYES AND PIGMENTS | 2004年 / 60卷 / 03期

关键词：

aminothiazole; antipyrine; azo coupling; chloroacetyl chloride; disperse dyes; polyester fabric; fastness properties; DFT calculations;

D O I：

10.1016/S0143-7208(03)00153-0

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Diazotized aryl amines were coupled with 2-aminothiazoles 1 and 2 to give the corresponding thiazolylazo dyes 3 and 4, respectively. 2-Amino-5-arylazothiazoles 5 reacted with chloroacetyl chloride to afford the chloro-acetamide derivatives 6 which further reacted with 2-mercaptobenzothiazole to furnish a new series of 5-arylazothiazolyl dyes 7. The azo structure of the dyes (rather than the tautomeric hydrazo structure) was assessed by ab initio DFT calculations at the B3LYP/6-31G* level. These dyes were applied to polyester fabric as disperse dyes and their fastness properties were evaluated. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：249 / 264

页数：16

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