邻、对－羟基苯甲酰胺基氧乙酸的合成及其酸性的比较

SYNTHESIS OF SALICYLAMINO OXY ACETIC ACID AND P-HYDROXYLBENGOAMINO OXY AETIC ACID AND THEIR ACIDITY

本文报导用邻－羟基苯甲酰异肟酸，对－羟基苯甲酰异羟肟酸分别合成了邻一羟基苯甲酰胺基氧乙酸（Ｏ－ＨＡＢ０ＡＡ）和对羟基苯甲酰胺基氧乙酸（Ｐ－ＨＡＢＯＡＡ）．用ｐＨ滴定法测定了它们的离解常数，结果表明，其酸性强弱为Ｏ－ＨＡＢＯＡＡ＞ｐ－ＨＡＢＯＡＡ。

This paper reported synthesis of (salicylamino)oxy acetic acid(o-HABOAA)from salicyhydroxamic acid and (p-hydroxylbenzoamino)oxy acelic acid(p-HABOAA)from p-hydroxybenzohydroxamic acid.The dissociation constants of theirs were determined.The results show that the order of their acidity is o-HABOAA >p-HABOAA.