申请人:HOECHST CELANESE CORPORATION
公开号:EP0449650A2
公开(公告)日:1991-10-02
The present invention relates to dyestuffs soluble in organic solvents having the structure:
wherein R is CF₃ or phenyl, R₁ and R₂ are the same or different substituent groups selected from the group consisting of hydrogen, hydroxy, halogen, C₁ to C₃ alkyl and C₁ to C₄ alkoxy, R₃ is selected from the group consisting of hydrogen, C₁ to C₃ alkyl, C₁ to C₃ alkoxy, COOH, and COOR₅ wherein R₅ is C₁ to C₄ alkyl, R₆ is selected from the group consisting of hydrogen, sulfonyl, C₁ to C₃ alkyl, C₁ to C₃ alkoxy and halogen, and n is zero or a whole number ranging from 1 to 3.
本发明涉及具有以下结构的可溶于有机溶剂的染料:
其中 R 是 CF₃ 或苯基,R₁ 和 R₂ 是相同或不同的取代基团,这些取代基团选自由氢、羟基、卤素、C₁ 至 C₃ 烷基和 C₁ 至 C₄ 烷氧基组成的组,R₃ 选自由氢、C₁ 至 C₃ 烷基、C₁ 至 C₄ 烷氧基组成的组、C₁ 至 C₃ 烷基、C₁ 至 C₃ 烷氧基、COOH 和 COOR₅,其中 R₅ 是 C₁ 至 C₄ 烷基,R₆ 选自由氢组成的组、磺酰基、C₁至 C₃烷基、C₁至 C₃烷氧基和卤素,n 为零或 1 至 3 的整数。