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US 6,187,920 B1Granted
Pyridazinone derivatives
AssigneeSumitomo Chemical Company, Limited
InventorTakashi Komori
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Abstract
This invention provides pyridazinone derivatives encompassed by the following the formula: wherein, R1, R2, R3, R4, R5 and R7 represent a hydrogen atom and the like, and R6 represents a C1-C3 alkyl and the like. The pyridazinone derivatives have excellent herbicidal activity, therefore, they can be used as an active ingredient for herbicidal compositions and can be utilized in herbicidal method, which are also described.
Claims2
A pyridazinone derivative encompassed by the following formula:
- wherein R100 represents hydrogen, halogen or C1-C3 alkyl, R101 represents C1-C3 haloalkyl and R102 represents hydrogen or C1-C3 alkyl.
A compound selected from the group consisting of the following compounds:
- 5-trifluoromethyl-2,3-dihydro-pyridazin-3-one and
- 4-methyl-5-trifluoromethyl-2,3-dihydro-pyridazin-3-one.
Dependencies are inferred from the claim text.