申请人:Akzo Nobel NV
公开号:US06458980B1
公开(公告)日:2002-10-01
Chelating agents (chelants) of the general structure:
wherein:
n=2-4
X=—CR1R2—, or
whereby
at least two of X are of formula III
Y=COOH, —PO3H2 or o-hydroxyphenyl
R1, R2 and R3 are independently H or C1-C8 alkyls
m=1, 2 or 3 and most preferably m=1
Z and Z1 are unsubstituted or substituted C
C*=C or CH or N
Z1, Z2, Z′1, and Z′2 are independently selected from H (or nothing for Z2 and Z′2 if C* is N) and C1-C10 groups that optionally contain one or more N atoms (optionally attached directly to C*), whereby one of the pairs Z/Z1, Z/Z2 and Z1/Z2 and one of the pairs Z′/Z′1, Z′1/Z′2 and Z′/Z′2 may be connected to form substituted or unsubstituted (hetero)(poly)cyclic structures of less than 20 atoms.
C* is either part of an aromatic (hetero)(poly)cyclic structure or linked by a double bond to Z or Z2 and/or Z′ or Z′2.
螯合剂(螯合剂)的一般结构:其中:n = 2-4;X = -CR1R2-,或者其中至少有两个X是公式III的Y = COOH,-PO3H2或o-羟基苯基;R1,R2和R3独立地为H或C1-C8烷基;m = 1,2或3,最好是m = 1;Z和Z1未取代或取代的CC*=C或CH或NZ1;Z1,Z2,Z'1和Z'2独立地选自H(或C*为N时为无)和C1-C10基团,可选地含有一个或多个N原子(可直接连接到C*),其中一对Z / Z1,Z / Z2和Z1 / Z2和一对Z' / Z'1,Z'1 / Z'2和Z' / Z'2可以连接以形成少于20个原子的取代或未取代的(杂)(多)环结构。C*要么是芳香(杂)(多)环结构的一部分,要么通过双键连接到Z或Z2和/或Z'或Z'2。