Substituted 1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamides, compositions containing them, and their utility as herbicides

US4954163A · kind A · utility

Assignee

• THE DOW CHEMICAL COMPANY · US

Inventors

• William A. Kleschik · Martinez, US
• Robert J. Ehr · Indianapolis, US
• Mark J. Costales · Concord, US
• Ben C. Gerwick, III · Clayton, US
• Richard W. Meikle, deceased · Walnut Creek, US
• William T. Monte · Concord, US
• Norman R. Pearson · Walnut Creek, US

Key dates

• Filing date: Sep 13, 1989
• Grant date: Sep 4, 1990
• Expiry date: Sep 13, 2009

Classification

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

Abstract

Novel substituted triazolo[1,5-a]pyrimidine-2-sulfonamides, e.g., 5,7-dimethyl-N-(2,6-dichlorophenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sulf onamide and their agriculturally acceptable salt are prepared. These compounds and compositions containing them are useful for the control of unwanted vegetation. Novel substituted triazolo[1,5-a]pyrimidine-2-sulfonyl chlorides and substituted anilines and their use as intermediates are also described.