O-aminophenolcarboxylic acid and o-aminothiophenolcarboxylic acid
申请人:Siemens Aktiengesellschaft
公开号:US20010056203A1
公开(公告)日:2001-12-27
The invention relates to novel o-aminophenolcarboxylic acids or o-aminothiophenolcarboxylic acids of the following structure
1
in which:
A
1
to A
7
are—independently of one another—H, CH
3
, OCH
3
, CH
2
CH
3
or OCH
2
CH
3
;
T is O or S, and m is 0 or 1;
Z is a carbocyclic or heterocyclic aromatic radical.