Heterocyclic compounds
AssigneeHoffmann-La Roche Inc.
InventorChristoph Luthy
Life of this patent
Estimating the term…
Abstract
The invention is concerned with novel compounds of the formula ##STR1## wherein R.sup.1 signifies optionally substituted phenyl or pyridyl, R.sup.2 signifies substituted phenyl, X signifies oxygen, sulfur or NR.sup.3, Y signifies oxygen or sulfur and R.sup.3 signifies methyl, halomethyl or 2-propynyl, and their manufacture, pest control compositions which contain said compounds as the active ingredient and the use of the active substances or compositions for the control of pests.
Claims9
Compounds of the formula ##STR12## wherein R.sup.1 is phenyl, pyridyl, phenyl substituted with up to 5 substituents selected from the group consisting of halo, C.sub.1-4 alkyl, halomethyl, C.sub.1-3 -alkoxy, C.sub.1-2 -alkylthio, C.sub.1-3 -haloalkoxy, C.sub.1-2 -haloalkylthio and cyano, of which no more than 4 are halo, 3 are alkyl, 2 are halomethyl or 1 is alkoxy, alkylthio, haloalkoxy, haloalkylthio or cyano, or pyridyl substituted with 1 or 2 halogen atoms, 1 or 2 methyl groups or a halomethyl group;
- R.sup.2 is phenyl substituted with up to 3 substituents selected from the group consisting of halo, methyl, halomethyl and methoxy, of which no more than 2 are methoxy or 1 is methyl or halomethyl, with at least one of the two o-positions being occupied;
- Y is oxygen or sulfur;
- and
- R.sup.3 is methyl, halomethyl or 2-propynyl.
5-(2-chlorophenyl)-3-(.alpha.,.alpha.,.alpha.-trifluoro-o-tolyl) -1,3,4-oxadiazol-2(3H)-one.
5-(2-chloro-6-fluorophen yl)-3-(2-fluorophenyl)-1,3,4-oxadiazol-2(3H)-one.
Dependencies are inferred from the claim text.