How is 2-Bromo-1-methyl-4-nitrobenzene (CAS: 7745-93-9) typically synthesized?

2-Bromo-1-methyl-4-nitrobenzene is typically synthesized through the bromination of 1-methyl-4-nitrobenzene using bromine in the presence of a Lewis acid like aluminum bromide. This process involves the electrophilic aromatic substitution of bromine at the meta position, followed by the introduction of the methyl group. The yield is usually good, and the selectivity is high for this position.