PYRETHROIDINSEKTICIDER, CYCLOPROPANCARBOXYLSYRER OG -ESTERE SOM MELLOMPRODUKTER FOR DISSE, SAMT FREMGANGSMAATE FOR DERES FREMSTILLING

摘要

Novel compounds having insecticidal and acaricidal activity which is retained over long periods of time under outdoor conditions have the general formula: in which: A represents CF3-C IDENTICAL C-, in which X represents a hydrogen, fluorine, chlorine or bromine atom, and Y represents a chlorine or bromine atom, and R represents the group is bound to the 2 or 3 position, in which R<1> represents a hydrogen atom, -CN or -C IDENTICAL CH, R<2> represents a 3-phenoxy, 3- benzyl, 4-allyl or 4-propargyl group, R<3> represents a hydrogen atom or an alkyl group and is bound to the 2 or 3 position, R<4> represents a benzyl, benzoyl, phenoxy, allyl or propargyl group and is bound to the 4 or 5 position, Z represents an oxygen or sulphur atom, R<5> and R<6> each independently represent an alkyl group having 1 to 3 carbon atoms or R<5> and R<6> together with the atoms to which they are bonded represent an aromatic, heteroaromatic or aliphatic, saturated or unsaturated orthocondensed ring, R<7> and R<8> independently represent a hydrogen or halogen atom or CH3, and R<9> represents a phenyl, vinyl substituted vinyl or phenoxy group. Novel intermediates of formula I wherein R is hydrogen or C1-C4 alkyl are also described.