6-aryl-4-aminopicolinates and their use as herbicides

US6784137B2 · kind B2 · utility

Assignee

• DOW AGROSCIENCES LLC · US

Inventors

• Terry W. Balko · Waldron, US
• Ann M. Buysse · Carmel, US
• Jeffrey B. Epp · Noblesville, US
• Stephen Craig Fields · Indianapolis, US
• Christian T. Lowe · Westfield, US
• Renee Joan Keese · Carmel, US
• John Richburg · Westfield, US
• James M. Ruiz · Zionsville, US
• Monte R. Weimer · Pittsboro, US
• Renard Antonio Green · Indianapolis, US
• Roger E. Gast · Zionsville, US
• Kristy Bryan · Carmel, US
• Nicholas M. Irvine · Westfield, US
• William C. Lo · Fishers, US
• William K. Brewster · Indianapolis, US
• Jeffery D. Webster · New Palestine, US

Key dates

• Filing date: Jul 30, 2002
• Grant date: Aug 31, 2004
• Expiry date: Jul 30, 2022

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D417/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

4-Aminopicolinic acids having aryl or heteroaryl substituents in the 6-position and their amine and acid derivatives are potent herbicides demonstrating a broad spectrum of weed control.