How is 1-(3-Bromo-4-methoxyphenyl)ethanone (CAS: 35310-75-9) typically synthesized?

1-(3-Bromo-4-methoxyphenyl)ethanone (CAS: 35310-75-9) is typically synthesized through the reaction of 4-methoxyphenylacetic acid with bromine in the presence of a Lewis acid catalyst such as aluminum bromide. The reaction involves bromination of the phenyl ring followed by elimination to form the ketone. The yield is generally good, around 80-90%, and the reaction is selective towards the bromination of the meta-position.