Patent ID: 6858756

Claim:
Process for preparing arylolefins, comprising reacting aromatic compounds of the general formula (I), Ar—[X] n (I), where n is one or two and Ar is a substituted or unsubstituted aromatic radical and X are each, independently of one another, chlorine, bromine, iodine or a sulphonate, with olefins which bear at least one hydrogen atom on the double bond in the presence of a palladium catalyst, at least one bulky nitrogen base and in the presence of a dipolar aprotic solvent, wherein the bulky nitrogen bases used are amines of the general formula, NR 8 R 9 R 10 (VII) where R 8 , R 9 and R 10 are each, independently of one another, C 1 -C 20 -alkyl, C 5 -C 14 -aryl or C 6 -C 15 -arylalkyl or two or three of the radicals R 8 , R 9 and R 10 together with the nitrogen atom may form a monocyclic, bicyclic or tricyclic heterocycle having from 4 to 8 carbon atoms per ring, with the proviso that one, two or three of the radicals R 8 , R 9 and R 10 , are each, independently of one another, either bound to the nitrogen atom via a tertiary or quaternary sp 3 carbon atom or are an aryl radical which is monosubstituted or disubstituted, in the ortho positions or N-heteroaromatic compounds which are substituted in the two ortho positions relative to the nitrogen.