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

US6303814A · kind A · utility

Assignee

• DOW AGROSCIENCES LLC · US

Inventors

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

Key dates

• Filing date: Mar 16, 2000
• Grant date: Oct 16, 2001
• Expiry date: Mar 16, 2020

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-methoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-yl)be nzenesulfonamide, 2-methoxy-4-(trifluoromethyl)-N-(5,8-dimethoxy[1,2,4]triazolo[1,5-c]pyrimi din-2-yl)pyridine-3-sulfonamide, and 2-methoxy-6-methoxycarbonyl-N-(5,8-dimethoxy[1,2,4]triazolo[1,5-a]pyridin- 2-yl)benzenesulfonamide were prepared from appropriately substituted 2-amino[1,2,4]triazolo [1,5-c]pyrimidine and 2-amino[1,2,4]triazolo[1,5-a]pyridine compounds and appropriately substituted benzene sulfonyl chloride and pyridine-3-sulfonyl chloride compounds. The compounds were found to be useful as herbicides.