4-(3-heterocyclyl-1-benzoyl) pyrazoles and their use as herbicides

US6165944A · kind A · utility

Assignee

• BASF SE

Inventors

• Wolfgang von Deyn · Neustadt, DE
• Regina Luise Hill · Speyer, DE
• Ernst Baumann · Dudenhofen, DE
• Stefan Engel · Idstein, DE
• Guido Mayer · Neheim, DE
• Joachim Rheinheimer · Ludwigshafen, DE
• Matthias Witschel · Bad Dürkheim, DE
• Ulf Misslitz · Neustadt, DE
• Oliver Wagner · Ludwigshafen, DE
• Martina Otten · Ludwigshafen, DE
• Helmut Walter · Obrigheim, DE
• Karl-Otto Westphalen · Speyer, DE

Key dates

• Filing date: Jun 16, 1998
• Grant date: Dec 26, 2000
• Expiry date: Jun 16, 2018

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D417/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

4-(3-Heterocyclyl-1-benzoyl)pyrazoles of the formula I ##STR1## where: R.sup.1 and R.sup.3 are each hydrogen, nitro, halogen, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfinyl, haloalkylsulfinyl, alkylsulfonyl, haloalkylsulfonyl, aminosulfonyl, N-alkylaminosulfonyl, N,N-dialkyl)aminosulfonyl, N-alkylsulfonylamino, N-haloalkylsulfonylamino, N-alkyl-N-alkylsulfonylamino or N-alkyl-N-haloalkylsulfonylamino; PA1 R.sup.2 is a 5- or 6-membered heterocyclyl radical with or without substitution which comprises 1 to 4 identical or different hetero atoms from the following group: oxygen, sulfur or nitrogen; PA1 R.sup.4 is hydrogen, halogen or alkyl; PA1 R.sup.5 is substituted pyrazole which is attached in position 4; and agriculturally useful salts thereof; processes for preparing the 4-(3-heterocyclyl-1-benzoyl)pyrazoles; compositions comprising them; and the use of these derivatives or these compositions comprising them for controlling undesirable plants.