Patent ID: 8124786

Claim:
A process for preparing carboxamides of the formula (I) in which R 1 is hydrogen, halogen, —C(R′) 3 where R′ is hydrogen, fluorine or O—C 1-4 -alkyl; R 2 is —CH(Me)—CH 2 —CH(Me) 2 , —CH 2 —CH 2 -t-But, or A is formula (A1) in which R 3 is hydrogen, cyano, halogen, nitro, C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy, C 1 -C 4 -alkylthio, C 3 -C 6 -cycloalkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -haloalkoxy, aminocarbonyl, aminocarbonyl-C 1 -C 4 -alkyl, or C 1 -C 4 haloalkylthio having from 1 to 5 halogen atoms; R 4 is halogen; R 5 is hydrogen, C 1 -C 4 -alkyl, hydroxy-C 1 -C 4 -alkyl, C 2 -C 6 -alkenyl, C 3 -C 6 -cycloalkyl, C 1 -C 4 -alkylthio-C 1 -C 4 -alkyl, C 1 -C 4 -alkoxy-C 1 -C 4 -alkyl, C 1 -C 4 -haloalkyl, C 1 -C 4 -haloalkylthio-C 1 -C 4 -alkyl wherein C 1 -C 4 -haloalkoxy-C 1 -C 4 -alkyl has, in each case, from 1 to 5 halogen atoms, or phenyl; comprising reacting a carboxamide of the formula (II) with a haloalkylbenzene of the formula (III) in which X is halogen in a metal-catalyzed reaction wherein metal catalyst is selected from the group consisting of palladium and copper catalysts.