Novel azobenzothiazole dyes have been synthesized by condensation of 2-nitrosobenzothiazole and 6-nitro-2-nitrosobenzothiazole with aniline, anthranilic acid, 3-hydroxymethylaniline, 2-, 3- and 4-chloroaniline, 4-fluoroaniline, 4-iodoaniline or 4-nitroaniline. The new synthetic approach described is advantageous over the classic diazotization process commonly used for the preparation of related disperse
通过将2-亚硝基
苯并噻唑和6-硝基-2-亚硝基
苯并噻唑与
苯胺,
邻氨基苯甲酸,3-羟甲基
苯胺,2-,3-和4-
氯苯胺,
4-氟苯胺,4-
碘苯胺或4-缩合反应合成了新型偶氮
苯并噻唑染料。
硝基苯胺。所描述的新的合成方法优于通常用于制备相关
分散染料的经典重氮化方法,因为在偶合组分的对位或等效位置上存在供电子基团不再是预先的。缩合反应成功的必要条件。