4-(3′,4′-heterocyclyl benzoyl) pyrazoles as herbicidal agents

US6541423B1 · kind B1 · utility

Assignee

• BASF SE

Inventors

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

Key dates

• Filing date: Nov 1, 2001
• Grant date: Apr 1, 2003
• Expiry date: Nov 1, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D417/06
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to pyrazolyl derivatives of benzo-condensated, unsaturated 5-membered nitrogen heterocycles of the general formula (I), wherein X represents N or a group C—R3; Y is O, S, SO, SO2 or NR4 or X—Y is S═N, and wherein X means sulfur, and the variables R1, R2 and Pz have the meanings indicated in claim 1. The invention, further relates to a method of producing said compounds, to agents that contain them and to their use as herbicidal agents.