N-(1, 2, 4! triazoloazinyl) benzenesulfonamide and pyridinesulfonamide compounds and their use as herbicides

US5858924A · kind A · utility

Assignee

• DOW AGROSCIENCES LLC · US

Inventors

• Timothy C. Johnson · Concord, US
• Robert J. Ehr · Indianapolis, US
• Richard Duane Johnston · Greenfield, US
• William A. Kleschick · Martinez, US
• Timothy P. Martin · Noblesville, US
• Mark A. Pobanz · Zionsville, US
• John C. Van Heertum · Indianapolis, US
• Richard K. Mann · Franklin, US

Key dates

• Filing date: Sep 23, 1997
• Grant date: Jan 12, 1999
• Expiry date: Sep 23, 2017

Classification

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

Abstract

N-(Triazoloazinyl)arylsulfonamide compounds, such as 2,6-dimethoxy-N-(8-chloro-5-methoxy1,2,4!-triazolo1,5-c!pyrimidin-2-yl)b enzenesulfonamide, 2-methoxy-4-(trifluoromethyl)-N-(5,8-dimethoxy1,2,4!-triazolo1,5-c!pyrim idin-2-yl)pyridine-3-sulfonamide, and 2-methoxy-6-methoxycarbonyl-N-(5,8-dimethoxy1,2,4!triazolo1,5-a!pyridin- 2-yl)benzenesulfonamide were prepared from appropriately substituted 2-amino1,2,4!triazolo-1,5-c!pyrimidine and 2-amino1,2,4!triazolo1,5-a!-pyridine compounds and appropriately substituted benzene-sulfonyl chloride and pyridine-3-sulfonyl chloride compounds. The compounds were found to be useful as herbicides.