O-aryl S-branched alkyl alkylphosphonodithioate insecticides and nematocides
AssigneeMobil Oil Corporation
InventorMohamed A. Fahmy
Life of this patent
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Abstract
Compounds having the formula ##STR1## in which R is alkyl of 1 to 8 carbon atoms; R.sub.1 is aryl; R.sub.2 is branched alkyl of 3 to 8 carbon atoms; and their use as insecticides and nematocides, e.g., in controlling corn rootworm and southern armyworm.
Claims22
A method for controlling insects and nematodes which comprises applying thereto or their habitat a pesticidal amount of a compound of the formula ##STR6## in which R is an alkyl of 1 to 8 carbon atoms;
- R.sub.1 is phenyl or phenyl substituted with 1 to 4 members selected from the group consisting of alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms, alkylsulfinyl of 1 to 4 carbon atoms, alkylsulfonyl of 1 to 4 carbon atoms, Cl, Br, F, nitro and trifluoromethyl;
- and
- R.sub.2 is a tertiary alkyl of 4 to 8 carbon atoms.
A method for controlling corn rootworm which comprises providing a pesticidal amount in the soil of a compound of the formula ##STR7## in which R is an alkyl of 1 to 8 carbon atoms;
- and
- R.sub.1 is phenyl or phenyl substituted with 1 to 4 members selected from the group consisting of alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms, alkylsulfinyl of 1 to 4 carbon atoms, alkylsulfonyl of 1 to 4 carbon atoms, Cl, Br, F, nitro and trifluoromethyl;
- and
- R.sub.2 is a tertiary alkyl of 4 to 8 carbon atoms.
A compound of the formula ##STR8## in which R is an alkyl of 1 to 8 carbon atoms;
- R.sub.1 is phenyl or phenyl substituted with 1 to 4 members selected from the group consisting of alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkylthio of 1 to 4 carbon atoms, alkylsulfinyl of 1 to 4 carbon atoms, alkylsulfonyl of 1 to 4 carbon atoms, Cl, Br, F, nitro and trifluoromethyl;
- and
- R.sub.2 is a tertiary alkyl of 4 to 8 carbon atoms.
A composition comprising, as the active ingredient, a compound of the formula ##STR9## in which R is an alkyl of 1 to 8 carbon atoms;
- R.sub.1 is phenyl or phenyl substituted with 1 to 4 members selected from the group consisting of alkyl of 1 to 4 carbon atoms, alkoxy of 1 to 4 carbon atoms, alkythio of 1 to 4 carbon atoms, alkylsulfinyl of 1 to 4 carbon atoms, alkylsulfonyl of 1 to 4 carbon atoms, Cl, Br, F, nitro and trifluoromethyl;
- and
- R.sub.2 is a tertiary alkyl of 4 to 8 carbon atoms;
- in an amount effective as an insecticide or a nematocide, and an inert, non-phytotoxic organic solvent or solid carrier.
Dependencies are inferred from the claim text.