5-hydroxypyrazol-4-ylcarbonyl-substituted saccharin derivatives

US5723415A · kind A · utility

Assignee

• BASF SE

Inventors

• Peter Plath · Bischofswerda, DE
• Wolfgang von Deyn · Neustadt, DE
• Stefan Engel · Idstein, DE
• Uwe Kardorff · Mannheim, DE
• Hartmann Konig · Heidelberg, DE
• Harald Rang · Ludwigshafen, DE
• Matthias Gerber · Schifferstadt, DE
• Helmut Walter · Obrigheim, DE
• Karl-Otto Westphalen · Speyer, DE

Key dates

• Filing date: Feb 3, 1997
• Grant date: Mar 3, 1998
• Expiry date: Feb 3, 2017

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A01N43/80
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

5-Hydroxypyrazol-4-ylcarbonyl-substituted saccharin derivatives of the formula I ##STR1## where the substituents have the following meanings: L and M are hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylthio, chlorine, cyano, methylsulfonyl, nitro or trifluoromethyl; PA1 Z is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.5 -alkynyl, C.sub.1 -C.sub.4 -acyl, benzyl or phenyl, the phenyl rings in each case being unsubstituted or substituted by halogen or C.sub.1 -C.sub.4 -alkyl; PA1 Q is a radical CO--J, PA1 J is a 4-linked 5-hydroxypyrazole ring of the formula II ##STR2## where R .sup.1 is C.sub.1 -C.sub.4 -alkyl and PA1 R .sup.2 is hydrogen or methyl, PA1 and agriculturally customary salts of the compounds I are described.