申请人:Kao Corporation
公开号:US04751320A1
公开(公告)日:1988-06-14
A novel phosphoric ester represented by the following formula (I): ##STR1## is produced by halogenating the hydroxyl group of a monoalkyl phosphoric acid, reacting the halogenated product with N-benzoyloxycarbonyl serine ester and then removing protecting groups for the carboxyl group and amino group. According to the present production process, the phosphoric ester can be obtained inexpensively at a high yield and high purity. Further, the phosphoric ester has a structure similar to that of the phospholipid and has nitrogen-containing polar groups such as amino group in one molecule, so that it has excellent emulsification ability and moisture keeping function. It is thus useful as emulsifiers, humectants and the like.
以下式子(I)所代表的新型磷酸酯化合物,是通过卤化单烷基磷酸的羟基,将卤化产物与N-苯甲酰氧羰基丝氨酸酯反应,然后去除羧基和氨基的保护基而生产的。根据目前的生产过程,可以以高产率和高纯度廉价地获得磷酸酯化合物。此外,磷酸酯化合物具有类似于磷脂的结构,并且在一个分子中具有氨基等含氮极性基团,因此具有出色的乳化能力和保湿功能。因此,它可以作为乳化剂、保湿剂等用途。