Abstract: The invention discloses a process for the preparation of a halogenated alcohol of formula:CF.sub.3 --CXCl--CH(OH)--CH.dbd.C(CH.sub.3).sub.2wherein X is bromo or chloro which comprises reacting a compound of formula:CF.sub.3 CHXClwith 3-methylbut-2-en-1-al in the presence of a strong base and an inert solvent. The products are useful intermediates for the manufacture of insecticides.

Abstract: The invention provides compounds of formula (I) having nematicidal, insecticidal, acaricidal and fungicidal properties, compositions comprising them and processes and intermediates for their preparation: ##STR1## wherein: X is oxygen or sulphur;n is 0, 1 or 2;R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are as described in the specification.

Abstract: The compounds of formula (I): ##STR1## wherein R is (CH.sub.3).sub.2 CHCH.sub.2 -- or (CH.sub.3).sub.3 CCH.sub.2 --, or R is the group CH.sub.3 --O--(R.sup.1)CH-- where R.sup.1 is hydrogen or methyl, or R is a cycloalkyl group containing from 3 to 6 carbon atoms have nematicidal activity and the present invention discloses a method for killing or controlling nematode pests which comprises applying to the locus of the pests or to a plant susceptible to attack by the pest an effective amount of a compound of formula (I).

Abstract: 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, amino, acylamino, --CO.sub.2 R.sup.4, or R.sup.1 and R.sup.3 when taken together form a 5- or 6-membered ring; 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 or 1; provided that R.sup.1, R.sup.2 and R.sup.3 are not all hydrogen when n is 0; are useful as nematicides.

Abstract: A compounds of formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are independently hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, alkylcycloalkyl, halogen, haloalkyl, alkoxy, alkenoxy, alkoxyalkyl, haloalkoxy, alkylthio, cyano, nitro, amino, NR.sup.4 R.sup.5, hydroxy, acylamino, --CO.sub.2 R.sup.3, --O(CH.sub.2).sub.m CO.sub.2 R.sup.3, phenyl, phenoxy, benzyl or benzyloxy, the phenyl group or phenyl moiety of the benzyl group being optionally substituted in the ring; or R.sup.1 and R.sup.2 when taken together form a 5- or 6-membered ring; m is 1 or 2; R.sup.3 and R.sup.5 are hydrogen or C.sub.1-4 alkyl; R.sup.4 is C.sub.1-4 alkyl; n is 0 or 1; X is oxygen or sulphur; Y is hydrogen when n is 0; or Y is oxygen or sulphur when n is 1; are useful as nematicides.

Abstract: 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; are useful as nematicides.

Abstract: 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.

Abstract: 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.

Abstract: A method for killing or controlling nematode pests which comprises applying to the locus of the pests or to a plant susceptible to attack by the pest an effective amount of a compound of formula (I): ##STR1## wherein R.sup.1 is an optionally substituted aryl or optionally substituted heterocyclic group and novel compounds of formula (I) where R.sup.1 is not phenyl.

Abstract: A compound of formula (I): ##STR1## or a salt thereof; where Z represents a heterocyclic ring and R.sup.2 and R.sup.3 are independently selected from hydrogen, nitrile, CONH.sub.2 and SO.sub.2 R.sup.4 where R.sup.4 is optionally substituted aryl, optionally substituted alkyl, aralkyl or cycloalkyl or R.sup.2 and R.sup.3 together form an optionally substituted methylene group or a bond, intermediates, compositions and insecticidal and nematocidal use.

Abstract: A compound of formula (I): ##STR1## or a salt thereof; wherein Z represents a heterocyclic ring and R.sup.2 and R.sup.3 are independently selected from hydrogen, nitrile, CONH.sub.2, and SO.sub.2 R.sup.4 wherein R.sup.4 is optionally substituted aryl, optionally substituted alkyl, aralkyl or cycloalkyl or R.sup.2 and R.sup.3 together form an optionally substituted methylene group or a bond, intermediates, compositions, insecticidal and nematicidal use.

Abstract: Novel substituted cis-1,2-dihydroxy-cyclohexa-3,5-diene compounds, useful as intermediates in the production of phenols and catechols for use as intermediates in the production of drugs, herbicides, insecticides and as chiral synthons, in particular cis-1,2-dihydroxy-3-trifluoromethyl-cyclohexa-3,5-diene. A process for producing the novel compounds is also claimed.

Abstract: Insecticidal 1-(2,6-dihalo-4-trifluoromethylphenyl)-2-pyridones and procedures for making the same.

Abstract: A compound of formula (I): ##STR1## or a salt thereof; where Z represents a heterocyclic ring and R.sup.2 and R.sup.3 are independently selected from hydrogen, nitrile, CONH.sub.2 and SO.sub.2 R.sup.4 wherein R.sup.4 is optionally substituted aryl, optionally substituted alkyl, aralkyl or cycloalkyl or R.sup.2 and R.sup.3 together form an optionally substituted methylene group or a bond, intermediates, compositions and insecticidal and nematocidal use.

Abstract: The present invention provides compounds of formula: ##STR1## wherein X and Y are each independently selected from fluorine, chlorine, methyl or methoxy and one of X and Y may additionally be hydrogen; R is alkoxy of up to 6 carbon atoms, mono- or dialkylamino of up to 4 carbon atoms in the alkyl moiety, hydroxyamino, or alkoxyamino of up to 4 carbon atoms, m and p are independently selected from 1 to 4, and each W and each Z are independently selected from hydrogen, halo and haloalkyl containing 1 or 2 carbon atoms, and n is zero or one.

Abstract: Novel substituted cis-1,2-dihydroxy-cyclohexa-3,5-diene compounds, useful as intermediates in the production of phenols and catechols for use as intermediates in the production of drugs, herbicides, insecticides and as chiral synthons, in particular cis-1,2-dihydroxy-3-trifluoromethyl-cyclohexa-3,5-diene. A process for producing the novel compounds is also claimed.