Compounds of Formula I or Formula II ##STR1## where A is an electron withdrawing group and B is a secondary or tertiary amino group or the group OD where D is H, aryl or an aliphatic group are made by reacting a corresponding compound of Formula Ia or Formula IIa ##STR2## in a solvent with a reagent selected from organic primary and secondary amines and compounds of the formula MOD where M is an alkali metal and A and D are as defined above. In this process the nitro group and the group B in Formula I and Ia are in the 2- or 4- position and the compounds of Formula I, Ia, II and IIa may optionally be further substituted. Preferably a primary or secondary amine is reacted with a compound of formula Ia, preferably using dimethylformamide as solvent. The process can result in the production of novel compounds, including (1) Compounds of Formula III wherein each group A is CO.sub.2 H or an alkali metal, amine or ammonium salt thereof or the two groups A together form a carboxylic anhydride group and B is in the 2- or 4-position and is OD, where D is hydrogen or an aliphatic group or is a secondary or tertiary amine group, (2) compounds of Formula IV ##STR3## where B is the group OD or the group NR.sub.2 R.sub.3 and wherein at least one of R.sub.1 and D or at least one of R.sub.1, R.sub.2 and R.sub.3 comprise a solubilizing group containing a primary amino, carboxylic, sulphonate or phosphate ester group in the form of an alkali metal, amine or ammonium salt or is a polyalkylene oxide group, the compounds optionally being further substituted.
化学式为I或II的化合物,其中A为电子吸引基团,B为二级或三级
氨基团或OD基团,其中D为氢、芳基或脂肪基,可通过在溶剂中与有机一级和二级胺和化合物MOD(其中M为碱
金属,A和D如上所定义)之一的试剂反应来制备
化学式Ia或IIa的相应化合物。在此过程中,
化学式I和Ia中的硝基和基团B位于2-或4-位,
化学式I、Ia、II和IIa的化合物可以选择进一步取代。优选使用二甲基甲酰胺作为溶剂,将
化学式Ia的一级或二级胺与其反应。该过程可以产生新的化合物,包括(1)
化学式III的化合物,其中每个基团A为CO2H或碱
金属、胺或
铵盐,或两个基团A共同形成
羧酸酐基团,B位于2-或4-位,为OD,其中D为氢或脂肪基或二级或三级胺基团,(2)
化学式IV的化合物,其中B为OD基团或NR2R3基团,其中R1和D中的至少一个或R1、R2和R3中的至少一个包含一种含有一级
氨基、
羧酸、
磺酸盐或
磷酸酯基团的增溶基团,形式为碱
金属、胺或
铵盐或为聚
乙烯氧化物基团,化合物可以选择进一步取代。