Phenylpyridazinones

US6551963B1 · kind B1 · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Karl-Heinz Linker · Leverkusen, DE
• Kurt Findeisen · Odenthal, DE
• Wilhelm Haas · Pulheim, DE
• Markus Dollinger · Leverkusen, DE
• Hans-Joachim Santel · Leverkusen, DE

Key dates

• Filing date: Nov 26, 1997
• Grant date: Apr 22, 2003
• Expiry date: Nov 26, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D237/22
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to novel phenylpyridazinones of the general formula (I) in which R1, R2, R3, R4, R5 and R6 are each as defined in the description, to processes for their preparation, to their use as herbicides and to novel intermediates and processes for preparing them.