Use of aniline derivates as coupling components in oxidative color formation reactions

US4845030A · kind A · utility

Assignee

• Boehringer Mannheim GmbH · DE

Inventors

• Hans-Georg Batz · Tutzing, DE
• Rupert Herrmann · Weilheim, DE
• Fritz Topfmeier · Heidelberg, DE
• Helmut Schlumberger · Polling, DE

Key dates

• Filing date: Nov 20, 1987
• Grant date: Jul 4, 1989
• Expiry date: Nov 20, 2007

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T436/206664
• WIPO field: Biotechnology
• WIPO sector: Chemistry

Abstract

The present invention is concerned with the use of aniline derivatives of the general formula: ##STR1## wherein R.sup.1 is a hydrogen atom or a --(CH.sub.2).sub.n --X radical, in which n is a whole number of from 1 to 3, X is H, OH, NH.sub.2, CH.sub.3 CONH, CH.sub.3 SO.sub.2 NH, COOH, SO.sub.3 H or --ArSO.sub.3 H, Ar being an optionally substituted arylene radical, m is a whole number of from 2 to 4, R.sup.3 is a hydrogen atom, an alkyl radical containing up to 3 carbon atoms, OCH.sub.3, CH.sub.3 CONH, COOH or SO.sub.3 H and R.sup.4 is a hydrogen, chlorine or bromine atom or a carboxylic acid or sulphonic acid group, as coupling components in oxidative color formation reactions. The present invention also provides an agent for the analytical determination of oxidizing substances by oxidative color coupling which, as coupling component, contains at least one compound of general formula (I).