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US 10,239,831 B2Granted
Method for producing bis(3-aminophenyl)disulfides and 3-aminothiols
AssigneeBayer CropScience AG
InventorsThomas Himmler, Julia Johanna Hahn
Life of this patent
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Abstract
The present invention relates to a novel method for preparing bis(3-aminophenyl) disulphides of the general formula (I) and 3-aminothiols of the general formula (II), where X,Y have the meanings stated in the description, which serve as intermediates for the preparation of phenyl sulphoxides having insecticidal, acaricidal and nematicidal activity.
Claims13
A bis(3-nitrophenyl) disulphide of the formula (IV)
- in which the residues X and Y are each independently methyl, ethyl, methoxy, ethoxy, or fluorine.
A bis(3-aminophenyl) disulphide of the formula (I)
- in which the residues X and Y are each independently methyl, ethyl, or fluorine, with the proviso that at least one of X and Y in each ring is not fluorine.
A compound that is
- 3-amino-2-fluoro-4-methylbenzenethiol or
- 5-amino-2-fluoro-4-methylbenzenethiol.
Dependencies are inferred from the claim text.