Novel sulfonamides and method of making
US4734123A · kind A · utility
15Cited by
3References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 6, 1986 |
| Grant date | Mar 29, 1988 |
| Priority date | — |
| Expiry date | May 6, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D249/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
N-aryl-5,6,7-substituted-1,2,4,-triazolo-[1,5-a]pyrimidine-2-sulfonamides undergo oxidative ring cleavage to afford herbicidal substituted N-aryl-5-amino-1,2,4-triazole-3-sulfonamides. These triazolesulfonamides can undergo cyclizations with 1,3-dicarbonyls to form novel herbicidal substituted N-aryl-5,6,7-substituted-1,2,4-triazolo-[1,5-a]pyrimidine-2-sulfonamides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.