申请人:BRENT CHEMICALS INTERNATIONAL PLC
公开号:EP0010994A1
公开(公告)日:1980-05-14
Compounds of Formula I or Formula II
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 la or Formula IIa
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 la are in the 2- or 4-position and the compounds of Formula I, la, II and IIa may optionally be further substituted. Preferably a primary or secondary amine is reacted with a compound of formula la, 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 C02H 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
where B is the group OD or the group NR2R3 and wherein at least one of R, and D or at least one of R1 R2 and R3 comprise a solubilising 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.
式 I 或式 II 的化合物
将相应的式 la 或式 IIa 化合物在溶剂中与选自有机伯胺和仲胺以及式 MOD(其中 M 为碱金属,A 和 D 如上文所定义)化合物的试剂反应制得。
在溶剂中与选自有机伯胺和仲胺以及式 MOD(其中 M 为碱金属,A 和 D 如上文所定义)化合物的试剂反应制得。在此过程中,式 I 和 la 中的硝基和基团 B 处于 2 位或 4 位,式 I、la、II 和 IIa 的化合物可选择进一步取代。最好使用二甲基甲酰胺作为溶剂,使伯胺或仲胺与式 la 化合物反应。该工艺可制备新型化合物,包括 (1) 式 III 的化合物
其中每个基团 A 是 C02H 或其碱金属盐、胺盐或铵盐,或两个基团 A 共同形成羧酸酐基团,B 在 2 位或 4 位且是 OD,其中 D 是氢或脂肪族基团或仲胺或叔胺基团,(2) 式 IV 的化合物
其中 B 是基团 OD 或基团 NR2R3,且 R 和 D 中至少有一个或 R1 R2 和 R3 中至少有一个包含碱金属、胺或铵盐形式的伯氨基、羧基、磺酸基或磷酸酯基的增溶基团或聚氧化亚烷基,这些化合物可选择被进一步取代。