Thiochromanoylpyrazolone derivatives

US6352959B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

• Klaus Langemann · Worms, DE
• Ernst Baumann · Dudenhofen, DE
• Wolfgang Deyn · Neustadt, DE
• Steffen Kudis · Mannheim, DE
• Guido Mayer · Neheim, DE
• Ulf Misslitz · Neustadt, DE
• Ulf Neidlein · Mannheim, DE
• Matthias Witschel · Bad Dürkheim, DE
• Norbert Gotz · Worms, DE
• Martina Otten · Ludwigshafen, DE
• Karl-Otto Westphalen · Speyer, DE
• Helmut Walter · Obrigheim, DE

Key dates

• Filing date: May 31, 2001
• Grant date: Mar 5, 2002
• Expiry date: May 31, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D409/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Thiochromanoylpyrazolone derivatives of the formula I where:A is an unsubstituted or substituted, saturated or unsaturated alkyl chain;R1 is cyano, thiocyanato, nitro, OR4, SR5, SOR6, S02R6, ONR6NR7, ON═CR6R8, NR9R10, P(O)R11R12, P(S)R11R12, COR, CO2R6, unsubstituted or substituted phenyl or heterocyclyl;R2 is alkyl, haloalkyl, alkoxy or haloalkoxy;R3 is hydrogen, alkyl or halogen;X is oxygen, sulfur, S═O, S(═O)2, CR13R14, C═O or C═NR15;m is 0, 1 or 2;n is 0, 1, 2, 3 or 4;R16 is substituted pyrazol-4-yl-carbonyl or substituted (4,5-dihydro-5-oxo-pyrazol-4-yl)methylidene;and their agriculturally useful salts;Processes for preparing the thiochromanoylpyrazolone derivatives, compositions comprising them, and the use of these derivatives or of the compositions comprising them for controlling undesirable plants are described.