4-trifluoromethylpyrazolyl-substituted pyridines and pyrimidines

US7022650B2 · kind B2 · utility

Assignee

• BAYER CROPSCIENCE AKTIENGESELLSCHAFT · DE

Inventors

• Michael Gerhard Hoffmann · Konstanz, DE
• Hendrik Helmke · Liederbach, DE
• Lothar Willms · Hillscheid, DE
• Thomas Auler · Bad Soden, DE
• Hermann Bieringer · Eppstein, DE
• Hubert Menne · Hofheim, DE

Key dates

• Filing date: Jul 24, 2003
• Grant date: Apr 4, 2006
• Expiry date: Aug 10, 2023

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D417/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A description is given of 4-trifluoromethylpyrazolyl-substituted pyridines and pyrimidines of formula (I) and of their use as herbicides. In this formula (I) R1, R2, R3 and R4 are various radicals, A is an aromatic or heteroaromatic radical, and Z is a nitrogen or carbon atom.