How is 1-Bromo-3,5-diethylbenzene (CAS: 90267-03-1) typically synthesized?

1-Bromo-3,5-diethylbenzene (CAS: 90267-03-1) is usually synthesized through a bromination reaction of 3,5-diethylbenzene using bromine in the presence of a Lewis acid catalyst like aluminum bromide. The reaction is carried out under anhydrous conditions to ensure high yield and selectivity. The process is typically performed in an organic solvent like dichloromethane. The yield is around 85-90%, and the method provides good control over product purity.