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US 8,507,532 B2Granted
Stable insecticide compositions and methods for producing same
AssigneeDow AgroSciences LLC
InventorsKuide Qin, Raymond E. Boucher, Jr.
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Abstract
Insect controlling compositions including an N-substituted (6-haloalkylpyridin-3-yl)alkyl sulfoximine compound exhibiting increased stability, along with methods for preparing same, are disclosed.
Claims3
A method, comprising:
- providing a composition including a stereoisomeric mixture of a compound having the following structure:
- wherein
- the mixture is defined by a first pair of diastereomers and a second pair of diastereomers, the first pair of diastereomers being defined by {(R)-1-[6-(triflouromethyl)pyridin-3-yl]ethyl}-(R)-(methyl)oxido-λ4-sulfanylidenecyanamide and {(S)-1-[6-(triflouromethyl)pyridin-3-yl]ethyl}-(S)(methyl)oxido-λ4-sulfanylidenecyanamide and the second pair of diastereomers being defined by {(R)-1-[6-(triflouromethyl)pyridin-3-yl]ethyl}-(S)-(methyl)oxido-λ4-sulfanylidenecyanamide and {(S)-1-[6-(triflouromethyl)pyridin-3-yl]ethyl}-(R)-(methyl)oxido-λ4-sulfanylidenecyanamide;
- and
- heating the composition to convert at least a portion of the second pair of diastereomers to the first pair of diastereomers.
2 more elements
Dependencies are inferred from the claim text.