3-hydroxy-4-aryl-5-oxo-pyrazoline derivatives

US5332720A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Bernd-Wieland Kruger · Wittlich, DE
• Reiner Fischer · Monheim, DE
• Heinz-Jurgen Bertram · Holzminden, DE
• Thomas Bretschneider · Lohmar, DE
• Stefan Bohm · Cologne, DE
• Andreas Krebs · Odenthal, DE
• Thomas Schenke · Odenthal, DE
• Hans-Joachim Santel · Leverkusen, DE
• Klaus Lurssen · Wittlich, DE
• Robert R. Schmidt · Cologne, DE
• Christoph Erdelen · Leichlingen, DE
• Ulrike Wachendorff-Neumann · Neuwied, DE
• Wilhelm Stendel · Wuppertal, DE

Key dates

• Filing date: Dec 16, 1992
• Grant date: Jul 26, 1994
• Expiry date: Dec 16, 2012

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D487/08
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

There are provided new 3-hydroxy-4-aryl-5-oxo-pyrazoline derivatives of the formula (I) ##STR1## The new 3-hydroxy-4-aryl-5-oxo-pyrazoline derivatives of the formula (I) have a particularly pronounced activity against animal pests, in particular against insects and arachnids, and against weeds.