Imperial Chemical Industries Limited

John Finney

Michael Drysdale Turnbull

Compounds of formula (I): ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 are independently hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, alkylcycloalkyl, halogen, haloalkyl, alkoxy, alkenoxy, alkoxyalkyl, haloalkoxy, alkylthio, cyano, nitro, amino, NR.sup.5 R.sup.6, hydroxy, acylamino, --CO.sub.2 R.sup.4, --O(CH.sub.2).sub.m CO.sub.2 R.sup.4, phenyl, phenoxy, benzyl or benzyloxy, the phenyl group or phenyl moiety of the benzyl group being optionally substituted in the ring; or R.sup.2 and R.sup.3 when taken together form a 5 - or 6-membered ring; m is 1 or 2; R.sup.4 and R.sup.6 are hydrogen or C.sub.1-4 alkyl; R.sup.5 is C.sub.1-4 alkyl; n is 0, 1 or 2; provided that when n is 0, R.sup.1, R.sup.2 and R.sup.3 are not all hydrogen, or when n is 0 and R.sup.2 is hydrogen, R.sup.1 and R.sup.3 are not both methyl, or when n is 0 and R.sup.2 and R.sup.3 are both hydrogen, R.sup.1 is not methyl; are useful as nematicides.

Heterocyclic compounds

Compounds of formula (I) ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are independently hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, alkylcycloalkyl, halogen, haloalkyl, alkoxy, alkenoxy, alkoxyalkyl, haloalkoxy, alkylthio, cyano, nitro, amino, NR.sup.7 R.sup.8, hydroxy, acylamino, --CO.sub.2 R.sup.6, phenyl, phenoxy, benzyl or benzyloxy, the phenyl group or phenyl moiety of the benzyl group being optionally substituted; or R.sup.2 and R.sup.3 when taken together form a 5- or 6-membered ring; R.sup.6 and R.sup.8 are hydrogen or C.sub.1-4 alkyl; R.sup.7 is C.sub.1-4 alkyl; and n is 0, 1 or 2: and compositions thereof, are useful for killing or controlling nematodes.

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Earley, United Kingdom

John Finney