AROMATIC-SUBSTITUTION IN THE COMPLEXES FORMED UPON ADDITION OF GASEOUS ARENIUM IONS TO PROELECTROPHILES - A FT-ICR STUDY

Experiments based on FT-ICR mass spectrometry provide conclusive evide nce for the operation of an alternative mechanism of electrophilic aro matic substitution occurring within the complex formed upon addition o f gaseous arenium ions to a variety of proelectrophiles, including alk yl halides, alcohols, epoxides, esters and diazoalkanes. The factors a ffecting the efficiency of the unconventional substitution are examine d in the light of the kinetic results of the FT-ICR experiments.