The S_N Mechanism in aromatic compounds. XVII. Cationic replaced groups in aromatic S_N reactions

Abstract

The general order of ease of displacement in activated aromatic S_N reactions- cation > dipole > neutral group is confirmed. The special place of F among electrically  neutral groups is noted and the experimental order SMe₂⁺>NMe₃⁺>F>NO2>Cl is discussed.