Nematicidal compositions

Drug – bio-affecting and body treating compositions – Designated organic active ingredient containing – Having -c- – wherein x is chalcogen – bonded directly to...

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514363, 548136, 548144, C07D285125, C07D271113, C07D41304, A01N 4382

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active

050137450

ABSTRACT:
2-Mercapto-1,3,4-oxadiazoles and 2-mercapto-1,3,4-thiadiazoles of the formula I ##STR1## in which X.sub.1 and X.sub.2 independently of one another are oxygen or sulfur, R.sub.1 is difluoromethyl or 3,4,4-trifluoro-3-butenyl, R.sub.2 is hydrogen or C.sub.1 -C.sub.3 alkyl and R.sub.3 is hydrogen, C.sub.1 -C.sub.5 alkyl which is unsubstituted or substituted by halogen or C.sub.1 -C.sub.3 alkoxy, C.sub.3 -C.sub.7 alkenyl which is unsubstituted or substituted by halogen or C.sub.1 -C.sub.3 alkoxy, C.sub.3 -C.sub.7 alkynyl which is unsubstituted or substituted by halogen or C.sub.1 -C.sub.3 alkoxy, or phenyl which is unsubstituted or substituted by halogen, NO.sub.2, CF.sub.3, C.sub.1 -C.sub.3 -alkyl or C.sub.1 -C.sub.3 alkoxy, or wherein, furthermore, R.sub.2 and R.sub.3 together can form the methylene chain (--CH.sub.2 --)n as a constituent of a 5- or 6-membered ring with the heteroatom X.sub.1, in which n is 3 or 4, and processes for the preparation of the compounds of the formula I are described.
The compounds of the formula I have nematicidal properties. Nematicidal compositions which contain at least one active substance of the formula I as the active substance and furthermore methods of using the active substances and the compositions for controlling nematodes are described.

REFERENCES:
patent: 3770754 (1973-11-01), Parseens
patent: 4259104 (1981-03-01), Edwards
patent: 4454147 (1984-06-01), Di Menna et al.
patent: 4861787 (1989-08-01), Beriser
J. Org. Chemistry, vol. 26, #1, 88-95 (1961).
O. Turilli, Annali di Chimica, 53, 1687-1698 (1963).

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