公开(公告)号：US3929874A

公开(公告)日：1975-12-30

申请号：US39032173

申请日：1973-08-21

Applicant: HOECHST AG

Inventor： BEERMANN CLAUS ,  KNITTEL VOLKER ,  DURSCH WALTER

IPC: C09K3/00 ,  C07C227/08 ,  C07C229/24 ,  C07D203/08 ,  C11D3/00 ,  C11D3/26 ,  C11D3/33 ,  C07C101/30

CPC classification number: C11D3/33

Abstract: Y represents hydrogen or methyl and for all the other variants of Z, Y is hydrogen, methyl or lower alkyl or hydroxyalkyl and wherein X is hydrogen or an alkali metal and R3 and R4 independently from each other representing hydrogen, lower alkyl or hydroxyalkyl and R4 furthermore representing the radical (CH2)m-COOX, m being 1 to 4 and X having the above meaning, R5 representing hydrogen or methyl, and p being 2 or 3, and a process for preparing it.
or

wherein Z is one of the groups -CR3R4-COOX

A complexing agent for metal ions, preferably alkaline earth metal ions, which has the general formula III

wherein, if Z stands for the group

Abstract translation: 金属离子，优选碱土金属离子的络合剂，其具有通式III Y | HN-Z ||（III）HO-C --- CH || XOOCCOOX其中Z是基团-CR 3 R 4 -CO 2 | H || HC --- C-OH || XOOCCOOX或R5 | -Cp-H2p-NOH ANGLE CH-CH ANGLE XOOCCOOX其中，如果Z代表基团| HC-CH-OH || XOOCCOOX Y表示氢 或甲基，并且对于Z的所有其它变体，Y是氢，甲基或低级烷基或羟烷基，并且其中X是氢或碱金属，并且R 3和R 4彼此独立地表示氢，低级烷基或羟烷基，R4还表示 基团 - （CH 2）m -COO m，m为1至4，X为上述含义，R 5为氢或甲基，p为2或3，以及其制备方法。