Patent ID: 8492558

Claim:
A process for preparing a compound of formula (I) in which n is 0, 1, 2 or 3, R 1 is hydrogen, cyano or fluorine, and each R 2 is independently selected from cyano, fluorine, C 1 -C 4 -alkyl, C 1 -C 4 -fluoroalkyl, C 1 -C 4 -alkoxy, C 1 -C 4 -fluoroalkoxy, C 1 -C 4 -alkylthio and C 1 -C 4 -fluoroalkylthio, comprising: (i) reacting a compound of formula (II) with a compound of formula (III) in which Hal′ is bromine or chlorine, and X is NH 2 or an X 1 or X 2 radical X 1 : in which Ar is phenyl which optionally bears 1, 2 or 3 substituents which are selected from the group consisting of C 1 -C 4 -alkyl and C 1 -C 4 -alkoxy, and R 3 and R 4 are each independently C 1 -C 6 -alkyl, in the presence of a palladium catalyst comprising palladium and one or more complex ligands, and, when X in formula II is an X 1 or X 2 radical, (ii) converting the product obtained in step (i) to the compound of formula (I).