How is 1-Bromo-2,3,5-trifluorobenzene (CAS: 133739-70-5) typically synthesized?

1-Bromo-2,3,5-trifluorobenzene (CAS: 133739-70-5) can be synthesized via a series of reactions, starting with bromination of 2,3,5-trifluorobenzenediol followed by bromination of the phenolic hydroxyl group. Common methods include the use of bromine in the presence of a base or a phase-transfer catalyst, which enhances selectivity. The reaction is typically conducted under anhydrous conditions to avoid side reactions. High yield and selectivity can be achieved with proper conditions.