Substituted 2,7-dioxo-2,7-dihydrobenzo(1:2-b; 5,6-b1)difuran or dipyrrole dyestuffs, processes for their preparation and their use for the colouration of aromatic polyester textile materials
申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0023080A1
公开(公告)日:1981-01-28
Dyestuffs having the general formula:
wherein Z1 and Z2 each independently represent oxygen or -NY in which Y is hydrogen, an optionally substituted hydrocarbon radical or an acyl radical,
R' and R2 each independently represent a substituted or unsubstituted aryl radical, preferably phenyl, and
X' and X2 each independently represent hydrogen, halogen, cyano, alkyl, alkoxy, nitro, amino, substituted amino, carboxylic acid, carboxylic acid ester, optionally substituted carbamoyl, alkylthio, arylthio, alkylsulphonyl, arylsulphonyl, acyl, acyloxy, hydroxy, sulphonic acid orsulphonic acid ester, or
X' and X2 together form a 5- or 6-membered, carbocyclic or heterocyclic, saturated or unsaturated, including aromatic, ring which may carry further substituents; processes for the manufacture of these dyestuffs and their use for colouring aromatic polyester textile materials.
具有以下通式的染料
其中 Z1 和 Z2 各自独立地代表氧或-NY,其中 Y 是氢、任选取代的烃基或酰基、
R'和 R2 各自独立地代表取代或未取代的芳基,最好是苯基,以及
X' 和 X2 各自独立地代表氢、卤素、氰基、烷基、烷氧基、硝基、氨基、取代氨基、羧酸、羧酸酯、任选取代的氨基甲酰基、烷硫基、芳硫基、烷基磺酰基、芳基磺酰基、酰基、酰氧基、羟基、磺酸或磺酸酯,或
X'和 X2 共同形成一个 5 或 6 元、碳环或杂环、饱和或不饱和(包括芳香族)环,该环可带有更多取代基;这些染料的生产工艺及其在芳香族聚酯纺织材料中的着色用途。