Herbicidal alkoxy-1,2,4-triazolo[1,5-c]pyrimidine-2-sulfonamides
US5163995A · kind A · utility
51Cited by
10References
73Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 13, 1991 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Aug 13, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N43/90
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
5-Alkoxy-1,2,4-triazolo[1,5-c]pyrimidine-2-sulfonamides are prepared from 5-alkoxy-1,2,4-triazolo[1,5-c]pyrimidine-2-sulfonyl halides by condensation with ortho-substituted N-trialkylsilylanilines and by other methods. N-(2,6-dichloro-3-methylphenyl)-8-fluoro-5-methoxy-1,2,4-triazolo[1,5-c]py rimidine-2-sulfonamide is typical. The compounds are general and selective pre- and postemergence herbicides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.