Patent ID: 7102046

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 at least one salt; wherein (a) the aromatic radical is a substituted or unsubstituted carbocyclic radical having from 6 to 24 carbon atoms; (b) the at least one bulky nitrogen base is or are selected from the group consisting of ethyldiisopropylamine, triisopropylamine, diisopropylaniline, triisobutylamine, ethyldiisobutylamine, dicyclohexylmethylamine, dicyclohexylethylamine, cyclohexyldiethylamine, oyclohexyldimethylamine and bis(diisopropyl)pyridine, and combinations thereof; (c) the salt comprises an ammonium, phosphonium, arsonium or alkali metal cation, (d) the palladium catalyst is a palladium complex prepared with the following phosphorus compounds: 1. tri(tert-butyl)phosphine 2. phenyl di(tert-butyl)phosphine 3. ferrocenyldi(tert-butyl)phosphine.