Heteroaromatically condensed hydroxypyridonecarboxamides, their preparation and use as herbicides

US5593943A · kind A · utility

Assignee

• BASF SE

Inventors

• Christoph Nuebling · Ludwigshafen am Rhein, DE
• Wolfgang von Deyn · Neustadt, DE
• Hans Theobald · Schifferstadt, DE
• Karl-Otto Westphalen · Speyer, DE
• Uwe Kardorff · Mannheim, DE
• Helmut Walter · Obrigheim, DE
• Thomas Kappe · Graz, AT
• Matthias Gerber · Schifferstadt, DE

Key dates

• Filing date: Jun 17, 1994
• Grant date: Jan 14, 1997
• Expiry date: Jun 17, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D513/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Heteroaromatically condensed hydroxypyridonecarboxamides of the structure I ##STR1## where the substituents and the ring Q have the following meanings: R.sup.1 hydrogen, hydroxyl, substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl, alkoxy; PA1 R.sup.2 hydrogen, substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl, alkenyloxy, dialkylamino; or PA1 R.sup.1, R.sup.2 together denote an alkylene chain with 2-6 members and which may be interrupted by oxygen, sulfur or N-methyl; PA1 X oxygen or sulfur; PA1 Q a 5- or 6-membered heteroaromatic ring containing from 1 to 3 nitrogen atoms and/or one oxygen or sulfur atom as heteroatoms, and which may be substituted one to three times, and environmentally compatible salts thereof.