Patent ID: 8859782

Claim:
A process for the preparation of a compound of formula (I) in which W is hydrogen, X is methyl, Y and Z, independently of one another, are hydrogen, alkyl, alkenyl, alkynyl, halogen, cyano, optionally substituted cycloalkyl, alkoxy, haloalkyl, haloalkoxy or in each case optionally substituted aryl or hetaryl, A is hydrogen, is in each case optionally halogen-substituted alkyl, alkenyl, alkoxyalkyl, alkylthioalkyl, saturated or unsaturated, optionally substituted cycloalkyl, in which optionally at least one ring atom is replaced by a heteroatom, or aryl, arylalkyl or hetaryl each of which is optionally substituted by halogen, alkyl, haloalkyl, alkoxy, haloalkoxy, cyano or nitro, B is hydrogen, alkyl or alkoxyalkyl, or A and B, together with the carbon atom to which they are bonded are a saturated or unsaturated unsubstituted or substituted cycle optionally containing at least one heteroatom, G is hydrogen (a) or is one of the groups in which E is a metal ion or an ammonium ion, L is oxygen or sulphur, M is oxygen or sulphur, R 1 is alkyl, alkenyl, alkoxyalkyl, alkylthioalkyl or polyalkoxyalkyl each of which is optionally substituted by halogen or cyano, or is cycloalkyl or heterocyclyl each of which is optionally substituted by halogen, alkyl or alkoxy, or is in each case optionally substituted phenyl, phenylalkyl, hetaryl, phenoxyalkyl or hetaryloxyalkyl, R 2 is alkyl, alkenyl, alkoxyalkyl or polyalkoxyalkyl each of which is optionally substituted by halogen or cyano, or is in each case optionally substituted cycloalkyl, phenyl or benzyl, comprising reacting a compound of formula (X) in which A and B have the meanings given above, G is the groups a), b), c) and E given above, V is hydrogen or V is COOR 8 , where R 8 is alkyl with a compound of formula (XI) in which W, X, Y and Z have the meanings given above, with the exception that the halogen can now only be fluorine and chlorine, and Q is triflate, bromine or iodine, in the presence of a base, a palladium catalyst and a phosphine ligand of the formula (XII′) in which the radicals R′, R″ and R″′ independently of one another are C 1 -C 12 -alkyl, C 5 -C 10 -cycloalkyl, C 6 -C 10 -aryl, optionally mono- or polysubstituted by C 1 -C 6 -alkyl, C 1 - C 6 -alkoxy, C 1 -C 6 -alkylamino, C 1 -C 6 -dialkylamino or phenyl optionally mono- or polysubstituted by C 1 -C 6 -alkyl, C 1 -C 6 -alkoxy, C 1 -C 6 -alkylamino or C 1 -C 6 -dialkylamino, in a diluent.