Patent ID: 8507688

Claim:
A process for preparing a compound of formula (III) in which Ar is the group Ar is a heteroaromatic radical or Ar is 1- or 2-naphthyl, where R 5 , R 6 , R 7 , R 8 and R 9 are the same or different and are each independently hydrogen, halogen, optionally halogen-substituted C 1 -C 6 -alkyl, C 1 -C 6 -alkoxy, phenyl, —CO—C 1 -C 3 -alkyl, —COO—C 1 -C 6 -alkyl or —COO—C 6 -C 10 -aryl, R 3 is hydroxyl, in each case optionally substituted C 1 -C 8 -alkyl, C 1 -C 8 -alkoxy, phenyl, aryl, phenoxy or aryloxy, or NR 4 R 4′ , where R 4 and R 4′ are the same or different and are each independently hydrogen, C 1 -C 4 -alkyl, phenyl optionally substituted by C 1 -C 3 -alkyl which may be substituted by fluorine or chlorine, or by nitro, cyano or di-C 1 -C 3 -alkylamino, or, together with the nitrogen atom to which they are bonded, are a saturated or unsaturated, substituted or unsubstituted cycle, comprising, reacting a compound of formula (I) in which R 1 is hydrogen or C 1 -C 8 -alkyl, R 2 is hydrogen or C 1 -C 8 -alkyl, or R 1 and R 2 together with the atoms to which they are bonded are a saturated or unsaturated, substituted or unsubstituted cycle, and Ar is as defined above with a compound of formula (II) in which Hal is halogen, and R 3 is as defined above, in the presence of a palladium catalyst, a phosphine ligand, an inorganic base, and a phase transfer catalyst, optionally using an organic solvent.