Pyridazinol compound, derivative thereof, preparation method therefor, herbicidal composition and use thereof
US12356990B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2020 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Jul 7, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F9/6509
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention belongs to the technical field of pesticides, and in particular relates to a pyridazinol compound, a derivative thereof, a preparation method therefor, a herbicidal composition and the use thereof. The pyridazinol compound is as represented by general formula I,wherein X represents and the ring is an unsubstituted or substituted aryl or unsubstituted or substituted heterocyclyl containing a carbon atom at the 1-position; Y represents haloalkyl; and Z represents halogen, cyano, hydroxy, etc. The derivative refers to an agriculturally acceptable derivative of the hydroxyl group at the 4-position of the pyridazine ring in the general formula I, including a salt, an ester, an oxime, a hydroxylamine and an ether derivative, etc. The compound, the derivative thereof and the composition thereof have good herbicidal activity and crop safety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.