申请人:Fuji Photo Film Co., Ltd.
公开号:US04188489A1
公开(公告)日:1980-02-12
3-Substituted amino-5-pyrazolones containing at least one sulfo group represented by the formula: ##STR1## and a process for producing the above pyrazolones by reacting a .beta.-substituted amino-.beta.-alkoxy acrylic acid derivative represented by the formula: ##STR2## and a hydrazine containing at least one sulfo group represented by the formula: NH.sub.2 --NH--Q wherein R.sup.1 is a hydrogen atom, an aliphatic group, an aralkyl group or an aryl group; R.sup.2 is an aliphatic group, an aralkyl group, a heterocyclic group, an aryl group or an acyl group; l is 0 or 1 and where l is O, R.sup.1 and R.sup.2 may combine with each other to form an alkylene group or an alkylene group interrupted by a hetero atom; R.sup.3 is an aliphatic group or an aralkyl group; X is oxygen or sulfur; Y is a hydroxy group, an alkoxy group, an aralkoxy group, or a primary, secondary or tertiary amino group; and Q is an aliphatic group, an aryl group, or an aralkyl group containing at least one sulfo group.
含有至少一个磺酸基的3-取代氨基-5-吡唑酮,其化学式表示为:##STR1## 以及通过反应β-取代氨基-β-烷氧基丙烯酸衍生物和含有至少一个磺酸基的肼的过程来制备上述吡唑酮,所述β-取代氨基-β-烷氧基丙烯酸衍生物的化学式表示为:##STR2## 其中R.sup.1为氢原子、脂肪基、芳基烷基或芳基基团;R.sup.2为脂肪基、芳基烷基、杂环基、芳基基团或酰基基团;l为0或1,当l为0时,R.sup.1和R.sup.2可以结合形成一个烷基或被杂原子中断的烷基;R.sup.3为脂肪基或芳基烷基;X为氧或硫;Y为羟基、烷氧基、芳基烷氧基或一级、二级或三级氨基基团;Q为至少含有一个磺酸基的脂肪基、芳基或芳基烷基。