Patent · US Expired

5-fluoromethyl-1,2,4-triazolo[1,5,-a]-pyrimidine-2-sulfonamides

US4979981A · kind A · utility

3Cited by

6References

32Claims

0Family size

Assignee

THE DOW CHEMICAL COMPANY · US

Inventors

Norman R. Pearson · Walnut Creek, US
Chrislyn M. Carson · Pittsburg, US
William A. Kleschick · Martinez, US

Key dates

Filing date	Oct 30, 1989
Grant date	Dec 25, 1990
Priority date	—
Expiry date	Oct 30, 2009

Classification

Technology area (CPC A)Human Necessities
CPC primaryA01N43/90
WIPO fieldOrganic fine chemistry
WIPO sectorChemistry

Abstract

N-(Substituted-phenyl)-5-fluoromethyl-1,2,4-triazolo[1,5-a]pyrimidine-2-sul fonamides are prepared from 2-benzylthio-5-fluoromethyl-1,2,4-triazolo[1,5-a]-pyrimidines and found to be herbicidal. The compounds, illustrated by 5-fluoromethyl-7-methoxy-(2,6-dichloro-3-methylphenyl)-1,2,4-triazolo[1,5- a]pyrimidine-2-sulfonamide, are degradable in the soil.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.