Ring annulated 5-alkoxy-n-aryl[1,2,4]triazolo[1,5-C]-pyrimidine-2-sulfonamide herbicides

US5494887A · kind A · utility

Assignee

• Dowelanco · US

Inventors

• Timothy C. Johnson · Concord, US
• Walter Reifschneider · Walnut Creek, US
• John C. Van Heertum · Indianapolis, US
• Mark J. Costales · Concord, US
• Kim E. Arndt · Carmel, US

Key dates

• Filing date: Jul 11, 1994
• Grant date: Feb 27, 1996
• Expiry date: Jul 11, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D495/14
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Substituted ring annulated 5-alkoxy-N-aryl-[1,2,4]triazolo[1,5-c]pyrimidine-2-sulfonamide compounds, such as N-(2,6-dichlorophenyl)-5-methoxycyclopenteno[d]-[1,2,4]triazolo[1,5-c]pyri midine-2-sulfonamide, were prepared by condensation of an appropriate 2-chloro-sulfonyl-5-alkoxy[1,2,4]triazolo[1,5-c]pyrimidine compound, such as 2-chlorosulfonyl-5-methoxycyclopenteno[d][1,2,4]triazolo[1,5-c]pyrimidine, with a substituted arylamine compound, such as 2,6-dichloroaniline, and found to possess herbicidal utility.