METHOD OF PRODUCING PYRROL DERIVATIVES

Novel pyrrole derivatives of the formula I wherein one of R2 and R3 is and the other of R2 and R3 as well as R4 and R5 are individually selected from the group consisting of hydrogen, halogen, alkyl of 1 to 18 carbon atoms, aryl of 6 to 14 carbon atoms, aralkyl of 7 to 18 carbon atoms, -CN, -CF3, -NO2, -COOAlk and Alk is alkyl of 1 to 8 carbon atoms, alkoxy of 1 to 8 carbon atoms, n is 0, 1 or 2, R', R1' and R2' are alkyl of 1 to 8 carbon atoms and R4 and R5 taken together with the carbon atoms to which they are attached may form an optionally further unsaturated carbon homocycle of up to 8 carbon atoms, Z is selected from the group consisting of hydrogen, -CN, -C 3BOND CH, -CF3 and alkyl of 1 to 3 carbon atoms, A is the residue of a pyrethrinoid acid, R1 is selected from the group consisting of +TR X', X, Y, Y' and Y'' are individually selected from the group consisting of hydrogen, halogen, alkyl of 1 to 8 carbon atoms and aryl of 6 to 14 carbon atoms, the dotted line indicating an optional double bond, r' is selected from the group consisting of hydrogen, alkyl of 1 to 18 carbon atoms, aryl of 6 to 14 carbon atoms, aralkyl of 7 to 18 carbon atoms, -CF3, -COOAlk and alkoxy of 1 to 8 carbon atoms and Alk has the above definition, R'' and R''' are individually selected from the group consisting of hydrogen, alkyl of 1 to 8 carbon atoms, aryl of 6 to 14 carbon atoms, aralkyl of 6 to 18 carbon atoms, -CF3, -COOAlk' and alkoxy of 1 to 8 carbon atoms and Alk' is alkyl of 1 to 8 carbon atoms having pesticidal properties and novel intermediates.