| 摘要 |
The invention provides insecticidally active compounds of formula (I): <CHEM> wherein X is nitrogen or carbon bearing a hydrogen atom; R<1> is a group of formula -S(O)n-Y, wherein Y is an optionally substituted heterocyclic ring containing at least one nitrogen atom, the point of attachment of the group Y being at a ring nitrogen atom, and n is 0, 1 or 2; R<2> is a group of formula -OSO2R<3> wherein R<3> is selected from C1-8 alkyl, C1-4 alkyl substituted by an optionally substituted phenyl or heterocyclic ring, C1-8 haloalkyl, C2-6 alkenyl, C2-4 alkenyl substituted by an optionally substituted phenyl or heterocyclic ring, C2-4 alkynyl, C2-4 alkynyl substituted by an optionally substituted phenyl or heterocyclic ring, optionally substituted aryl, and a group of formula -N(R<4>)(R<5>) wherein R<4> and R<5> are independently selected from hydrogen and C1-6 alkyl or wherein R<4> and R<5> together represent -(CH2)p- wherein p is 2, 3, 4 or 5; and wherein the groups R<2> and R<1> occupy either a 1,3 configuration relative to each other on the ring when X is carbon bearing a hydrogen, or a 2,4 or 2,6 configuration relative to the group X when X is nitrogen. The invention also provides compositions comprising the compounds of formula (I) and methods of their use in combating insect pests, and novel intermediates and chemical processes for their preparation. |
