Importance

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Abstract

Compound of the formula (I): Q.sup.1 Q(CR.sup.2 .dbd.CR.sup.3).sub.a (CR.sup.4 .dbd.CF)(CR.sup.5 .dbd.CR.sup.6).sub.b C(.dbd.O)NHR.sup.1 (1) or a salt thereof, wherein Q.sup.1 is a phenyl ring or a fused bicyclic ring system containing 9 or 10 ring carbon atoms at least one ring being aromatic, or Q.sup.1 is a dihalovinyl group; Q is an alkyl chain containing 1 to 12 carbon atoms and optionally containing one or two oxygen atoms and/or an unsaturated group --CR.sup.7 .dbd.CR.sup.8 --, or --C.dbd.C--, wherein R.sup.7 and R.sup.8 are selected from hydrogen or halo; a is 0 or 1; b is 0 or 1; the sum of a and b is 0 or 1; R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are the same or different, and are independently selected from hydrogen, halo and C.sub.1-4 alkyl; R.sup.1 is selected from hydrogen and C.sub.1-6 hydrocarbyl optionally substituted by dioxalanyl, halo, cyano, trifluoromethyl, trifluoromethylthio or C.sub.1-6 alkoxy are disclosed which have pesticidal activity. Pesticidal formulations containing the compounds of the formula (I), their use in the control of pests and methods for their preparation are also disclosed.

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First Claim