1-alkyl-4-benzoyl-5-hydroxypyrazole compounds and their use as herbicides
US5824802A · kind A · utility
8Cited by
9References
29Claims
0Family size
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Key dates
| Filing date | Mar 24, 1998 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Mar 24, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D413/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
1-Alkyl-4-benzoyl-5-hydroxy-1H-pyrazole compounds in which the benzoyl moiety is substituted in the 2-position with groups such as halo or alkyl, in the 4-position with an alkylsulfonyl group, and in the 3-position with an acyclic or cyclic derivatized amino group, such as 1-ethyl-4-(2-chloro-4-methylsulfonyl-3-(morpholin-4-yl)benzoyl-5-hydroxy-1 H-pyrazole, were prepared and found to be useful for the control of a variety of broadleaf and grassy weeds. The compounds can be applied either preemergently or postemergently and can be used to control undesirable vegetation in corn, rice, and wheat crops.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.