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US 4,065,574 AGranted
New method for controlling fungi using 4-chromone, 4-chromanone, 4-chromone oxime and 4-chromanone oxime compounds
AssigneeThe Upjohn Company
InventorsMalcolm W. Moon, John C. Sharp
Life of this patent
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Abstract
Certain 4-chromones, 4-chromanones, 4-chromone oximes, and 4-chromanone oximes have been found to be active against fungi. These generally well-known compounds can be applied to seeds, plants, animals, objects, or places for preventing damage due to fungi. Specific, recognized active compounds, e.g., 6,8-dichloro-3-methyl-4-chromone oximes and 3-methyl-4-chromanone oximes are shown to be so useful in detail. General methods of preparing the active compounds are described.
Claims12
A method for controlling fungi comprising the appliction of an effective antifungal amount of a compound of the formula:
- ##STR4## wherein X is chlorine, bromine, lower alkyl of 1 to 4 carbon atoms, trifluoromethyl, methoxy, ethoxy, methylthio, or ethylthio;
- n is an integer 0, 1, 2, or 3;
- Z is the oxygen atom or the oximino group (.dbd.NOH);
- R.sub.3 is hydrogen, halogen, hydroxyl, or lower alkyl;
- and R.sub.1 and R.sub.2 are halogen, lower alkyl, or hydrogen provided that X and n are selected independently and that 6-X is 6-chloro or 6-bromo when R.sub.3 is hydroxyl, applied to fungi.
2 more elements
Dependencies are inferred from the claim text.