Insecticidal 2-substituted-imino-3-alkyl-5-dialkoxyphosphinothioyloxy-6H-1,3,4-thiadi azine
AssigneeChevron Research Company
InventorLaroy H. Edwards
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Abstract
Thiadiazine compounds of the formula (I) ##STR1## wherein R.sup.1 is alkyl, R.sup.2 is alkyl, cycloalkyl, alkenyl or aryl, R.sup.3 is alkyl and R.sup.4 is alkyl, are useful as insecticides. The thiadiazine compounds are prepared by the addition of a dialkylhalothiophosphate to a tetrahydro-6H-1,3,4-thiadiazin-5-one.
Claims12
A compound of the formula ##STR8## wherein R.sup.1 is alkyl of 1 to 6 carbon atoms, R.sup.2 is alkyl of 1 to 6 carbon atoms, alkenyl of 3 to 6 carbon atoms, cycloalkyl of 5 to 6 carbon atoms, phenyl or phenyl substituted with 1 to 2 substituents selected from the group consisting of alkyl of 1 to 4 carbon atoms, fluoro, chloro, bromo, iodo, nitro, trifluoromethyl, trichloromethyl, tribromomethyl, and alkoxy of 1 to 4 carbon atoms, R.sup.3 is alkyl of 1 to 6 carbon atoms and R.sup.4 is alkyl of 1 to 6 carbon atoms.
Dependencies are inferred from the claim text.