Patent Number: 6,310,238

Title: O-amino(thio)phenolcarboxylic acids, and their preparation

Abstract: The invention relates to novel o-aminophenolcarboxylic acids or o-aminothiophenolcarboxylic acids of the following structure ##STR1## in which: A.sup.1 to A.sup.7 are--independently of one another--H, CH.sub.3, OCH.sub.3, CH.sub.2 CH.sub.3 or OCH.sub.2 CH.sub.3 ; T is O or S, and m is 0 or 1; Z is a carbocyclic or heterocyclic aromatic radical.

Inventors: Sezi; Recai (Rottenbach, DE), Keitmann; Michael (Weisendorf, DE)

Assignee: Siemens Aktiengesellschaft

International Classification: C07C 217/90 (20060101); C07C 217/00 (20060101); C07D 213/00 (20060101); C07D 213/643 (20060101); C07C 69/92 (20060101); C07C 69/00 (20060101); C07C 229/10 (); C07C 229/12 ()

Expiration Date: 10/30/2018