A process for preparing an alkali metal salt of a phosphoric ester represented by the following general formula (III): ##STR1## wherein R.sup.1 means an organic group, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 denote individually a hydrogen atom or organic group, R.sup.2 and R.sup.4 may optionally be coupled together into a ring, and M stands for an alkali metal, which comprises reacting a monoalkali metal salt of an organophosphoric monoester, represented by the following general formula (I): ##STR2## wherein R.sup.1 and M have the same meaning as defined above, with an epoxy compound represented by the following general formula (II): ##STR3## wherein R.sup.2, R.sup.3, R.sup.4 and R.sup.5 have the same meaning as defined above.
一种制备
磷酸酯碱
金属盐的方法,该盐的通用式为(III):##STR1## 其中R.sup.1表示有机基团,R.sup.2,R.sup.3,R.sup.4和R.sup.5分别表示氢原子或有机基团,R.sup.2和R.sup.4可以选择性地耦合成环,M代表碱
金属,包括将有机
磷酸单酯的单碱
金属盐与以下通用式(II)所表示的环氧化合物反应,所述环氧化合物的通用式为(II):##STR3## 其中R.sup.2,R.sup.3,R.sup.4和R.sup.5的含义与上述定义相同。