N-pyridinyl[1,2,4]triazolo[1,5-c]pyrimidine-2-sulfonamide herbicides

US5614469A · kind A · utility

Assignee

• Dowelanco · US

Inventors

• Kim E. Arndt · Carmel, US
• William A. Kleschick · Martinez, US
• Walter Reifschneider · Walnut Creek, US
• Beth A. Swisher · Fairfield, US
• Robert J. Ehr · Indianapolis, US
• John J. Jachetta · Pittsboro, US
• John C. Van Heertum · Indianapolis, US

Key dates

• Filing date: Jun 6, 1995
• Grant date: Mar 25, 1997
• Expiry date: Jun 6, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D487/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Substituted N-pyridinyl[1,2,4]triazolo[1,5-c]-pyrimidine-2-sulfonamide compounds, such as N-(2-fluoro-4-methyl)-7-fluoro-5-methoxy[1,2,4]triazolo[1,5-c]pyrimidine-2 -sulfonamide, were prepared bycondensation of a 2-chlorosulfonyl[1,2,4]triazolo[1,5-c]pyrimidine compound, such as 2-chlorosulfonyl-7-fluoro-5-methoxy[1,2,4]triazolo[1,5-c]pyrimidine, with a substituted 3-aminopyridine compound, such as 3-amino-2-fluoro-4-methylpyridine, and found to possess herbicidal utility.