Patent ID: 8362271

Claim:
A process for preparing a compound of formula (I) in which each R 1 is independently selected from the group consisting of chlorine, fluorine, C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -alkoxy and C 1 -C 4 -haloalkoxy; n is 1, 2 or 3; each R 2 is independently selected from the group consisting of cyano, nitro, halogen, C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkoxy, C 1 -C 4 -alkylthio and C 1 -C 4 -alkoxycarbonyl; m is 0, 1 or 2; each R 3 is independently selected from the group consisting of halogen, cyano, C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl , C 1 -C 4 -alkoxy and C 1 -C 4 -haloalkoxy; p is 0, 1, 2 or 3; Y is halogen, nitro, a group R a , a group R b , a group R c or a group R d ; in which R 4 is H, C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -alkoxy, C 1 -C 4 -haloalkoxy, aryl, aryloxy, or aryl-C 1 -C 4 -alkoxy, where the aryl groups in the three latter radicals optionally bear 1, 2, 3 or 4 substituents which are selected from the group consisting of halogen, cyano, nitro, C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -alkoxy and C 1 -C 4 -haloalkoxy, and R 5 is C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl or aryl-C 1 -C 4 -alkyl, where the aryl group in the latter radical optionally bears 1, 2, 3 or 4 substituents which are selected from the group consisting of halogen, cyano, nitro, C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -alkoxy and C 1 -C 4 -haloalkoxy; comprising (i) reacting a compound of formula (II) with a compound of formula (IIIa) in which X is chlorine, iodine or bromine; and R 1 , n, R 2 , m, R 3 , p and Y are each as defined above, in the presence of a base and a catalytic system comprising a ligand and a copper(I) compound.