Insecticidal substituted azinyl derivatives

1. A compound of formula (I)

wherein

A, B and D represent N, CH or CR 3 , with the proviso that one of A, B or D is N and the other two CH or CR 1 ;

R 1 represents C 1 -C 4 alkyl substituted with from one up to the maximum number of fluorine or chlorine atoms;

R 2 represents C1, CF 3 , O(C 1 -C 3 alkyl), NH(C 1 -C 3 alkyl) or N(C 1 -C 3 alkyl) 2 in which each of the C 1 -C 3 alkyl groups is optionally substituted with from one up to the maximum number of fluorine atoms;

R 3 represents H, F, Cl, Br, I, C 1 -C 3 alkyl or O(C 1 -C 3 alkyl) in which each of the C 1 -C 3 alkyl groups is optionally substituted with from one up to the maximum number of fluorine atoms;

R 4 represents H, C 1 -C 3 alkyl (optionally substituted with alkoxy, benzyloxy or —OC(O)R 7 ), or CO 2 R 6 ;

R 5 represents H, C 1 -C 3 alkyl (optionally substituted with C 1 -C 3 alkoxy, F, CN or CO 2 R), OH, C 1 -C 3 alkoxy or CO 2 R 6 , or R 4 and R 5 taken together represent —CH 2 CH 2 — or —C(O)CH 2 —;

R 6 represents H or C 1 -C 3 alkyl;

R 7 represents C 1 -C 3 alkyl;

W represents O or S;

Ar represents a phenyl group substituted with one to four substituents independently selected from F, Cl, Br, I, NO 2 , CN, SCF 3 , SO 2 CF 3 , C 1 -C 3 alky substituted with from one up to the maximum number of chlorine or fluorine atoms, or C 1 -C 3 alkoxy optionally substituted with from one up to the maximum number of chlorine or fluorine atoms; or represents

and

X and Y independently represent H, F, Cl, Br, I, NO 2 , CN, SCF 3 , SO 2 CF 3 , C 1 -C 3 alky substituted with from one up to the maximum number of chlorine or fluorine atoms, or C 1 -C 3 alkoxy optionally substituted with from one up to the maximum number of chlorine or fluorine atoms.

2. A compound according to claim 1 wherein Ar represents

3. A compound according to claim 2 in which R 1 is CH 2 CF 3 .

4. A compound according to claim 2 in which R 2 is OCH 2 CF 3 .

5. A compound according to claim 2 in which W is O.

6. A compound according to claim 2 in which R 4 and R 5 are independently H or CH 3 .

7. A compound according to claim 2 in which Ar represents

8. A compound according to claim 2 in which X is Br, Cl, CF 3 or OCF 3 .

9. A composition for controlling insects which comprises a compound of claim 1 in combination with a phytologically-acceptable carrier.

10. A method of controlling insects which comprises applying to a locus where control is desired an insect-inactivating amount of a compound of claim 1 .