A process for producing alkyl aryl compounds

The preparation of alkylaryl compounds is carried out by a) reacting a C b) separation of 5 to 100% of the obtained in step a) 2-pentene and subsequent reaction of an isomerization catalyst to a mixture of 2-pentene and 1-pentene, which is recycled in stage a), c) dimerization of C obtained in step b) after separation of olefin mixture d) reaction in stage c) C e) optionally sulfonating the obtained in step d) alkylaromatic compounds and neutralization to give alkylarylsulfonates, where prior to the sulfonation, 0 to 60 wt .-%, based on the information contained in stage d), alkyl aromatic compounds, may be added to linear alkylbenzenes, unless admixing in step d) has taken place, f) ...