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US 4,017,638 AGranted
Iso-(thio)-urea derivatives
AssigneeCiba-Geigy Corporation
InventorsVolker Dittrich, Werner Topfl, Odd Kristiansen
Life of this patent
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Abstract
Iso-(thio)-urea derivatives of the formula ##STR1## wherein R.sub.1 and R.sub.2 each represent C.sub.1 -C.sub.5 -alkyl or phenyl or benzyl mono-, di- or trisubstituted by halogen, trifluoromethyl, nitro and/or methyl, and X represents oxygen or sulphur, processes for their production and their use in pest control.
Claims6
An iso-(thio)-urea derivative of the formula ##STR11## wherein R.sub.1 and R.sub.2 each represent C.sub.1 -C.sub.5 -alkyl or phenyl or benzyl mono-, di- or trisubstituted by halogen, trifluoromethyl, nitro methyl, and
- X represents oxygen or sulphur.
Dependencies are inferred from the claim text.