申请人:CIBA-GEIGY AG
公开号:EP0057661A2
公开(公告)日:1982-08-11
A process for the production of a compound of formula
which comprises reacting a compound of formula
or a mixture of the compounds (2a) and (2b) with a compound ZH having an active hydrogen atom, under acidic conditions, wherein X and Y are the same or different and each represents an aromatic carbocyclic radical having an unsubstituted or substituted amino group in the para position to the indicated bond, or a heterocyclic radical, and Z represents an aryl radical of formula
wherein Ri, R2, R3 and R4, each independently of the other, represent hydrogen, hydroxy, halogen, cyano, nitro, C1-C12- alkyl, C21-C12-alkoxy, C2-C8-alkoxyalkyl, cycloalkyl, aralkyl, aryl, aryloxy, or substituted alkyl, cycloalkyl, aralkyl or aryl, or amino or substituted amino, or a sulphonic acid group or derivates thereof, V represents oxygen, sulphur or imino and T1 and T2 independently represent hydrogen, C1-C12-alkyl, C2-C12-alkenyl, aryl, aralkyl, and T, is also amido or ureido, or T, and T2 together with the nitrogen atom which links them, represent a five- or six-membered heterocyclic radical.
Preferably Z contains at least one water-solubilising group, e.g. -S03M, wherein M is hydrogen, ammonium or alkali metal.
一种生产式化合物的工艺
其中包括在酸性条件下使式
或化合物(2a)和(2b)的混合物与具有一个活泼氢原子的化合物 ZH 在酸性条件下反应,其中 X 和 Y 是相同或不同的,各自代表芳香碳环基,该碳环基或杂环基在所指键的对位上具有未取代或取代的氨基,Z 代表式中的芳基。
其中 Ri、R2、R3 和 R4 各自独立地代表氢、羟基、卤素、氰基、硝基、C1-C12-烷基、C21-C12-烷氧基、C2-C8-烷氧基烷基、环烷基、芳基、芳氧基、或取代的烷基、环烷基、芳基或芳基、或氨基或取代的氨基、或磺酸基团或其衍生物、V 代表氧、硫或亚氨基,T1 和 T2 独立地代表氢、C1-C12-烷基、C2-C12-烯基、芳基、芳烷基,T 也是氨基或脲基,或 T 和 T2 与连接它们的氮原子一起代表五元或六元杂环基。
Z 最好含有至少一个水溶性基团,如-S03M,其中 M 是氢、铵或碱金属。