O-aminophenolcarboxylic acid and o-aminothiophenolcarboxylic acid

US6437178B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Recai Sezi · Simmerath, DE
• Michael Keitmann · Weisendorf, DE

Key dates

• Filing date: Jul 9, 2001
• Grant date: Aug 20, 2002
• Expiry date: Jul 9, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C217/90
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to novel o-aminophenolcarboxylic acids or o-aminothiophenolcarboxylic acids of the following structure in which:A1 to A7 are—independently of one another—H, CH3, OCH3, CH2CH3 or OCH2CH3;T is O or S, and m is 0 or 1;Z is a carbocyclic or heterocyclic aromatic radical.