Pentadienone hydrazones as insecticides
AssigneeAmerican Cyanamid Company
InventorJames Byron Lovell
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Abstract
The invention relates to a method for controlling insects by contacting the insects, and/or applying to their habitat or food supply, with an insecticidally effective amount of a compound of the formula: ##STR1## wherein R.sub.1 and R.sub.2 each represent hydrogen, halogen, CF.sub.3, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4 alkylthio; R.sub.3 is hydrogen or methyl, provided that when R.sub.3 is methyl, R.sub.1 and R.sub.2 are also methyl; R.sub.4 and R.sub.5 represent hydrogen or C.sub.1 -C.sub.4 alkyl, and when taken together, an alkylene group of 2 to 6 carbon atoms, methyl or a phenyl alkylene group of 2 to 4 carbon atoms, a dimethyl alkylene group of 2 to 4 carbon atoms or 1,2-cyclohexylene; and R.sub.6 is hydrogen or C.sub.1 -C.sub.4 alkyl; and salts thereof.
Claims25
A method for controlling insects comprising, contacting the insect, or their habitat, with an insecticidally effective amount of a compound having the structure:
- ##STR29## wherein R.sub.1 and R.sub.2 each represent hydrogen, halogen, CF.sub.3, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.3 alkoxy or C.sub.1 -C.sub.4 alkylthio;
- R.sub.3 is hydrogen or methyl, provided that when R.sub.3 is methyl, R.sub.1 and R.sub.2 are also methyl;
- R.sub.4 and R.sub.5 represent hydrogen or C.sub.1 -C.sub.4 alkyl, and when taken together, an alkylene group of 2 to 6 carbon atoms, a methyl substituted or a phenyl substituted alkylene group of 2 to 4 carbon atoms, a dimethyl substituted alkylene group of 2 to 4 carbon atoms or 1,2-cyclohexylene;
- and R.sub.6 is hydrogen or C.sub.1 -C.sub.4 alkyl;
- or salts thereof.
A method for protecting agronomic crops, trees, shrubs and ornamentals, from attack by insects comprising, applying thereto an insecticidally effective amount of a compound represented by the formula:
- ##STR30## wherein R.sub.1 and R.sub.2 each represent hydrogen, halogen, CF.sub.3, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or C.sub.1 -C.sub.4 alkylthio;
- R.sub.3 is hydrogen or methyl, provided that when R.sub.3 is methyl, R.sub.1 and R.sub.2 are also methyl;
- R.sub.4 and R.sub.5 represent hydrogen or C.sub.1 -C.sub.4 alkyl, and when taken together, an alkylene group of 2 to 6 carbon atoms, methyl or a phenyl alkylene group of 2 to 4 carbon atoms, or a dimethyl alkylene group of 2 to 4 carbon atoms;
- and R.sub.6 is hydrogen or C.sub.1 -C.sub.4 alkyl;
- or salts thereof.
Dependencies are inferred from the claim text.