How is 4-Bromo-2,3-difluoroaniline (CAS: 112279-72-8) typically synthesized?

4-Bromo-2,3-difluoroaniline (CAS: 112279-72-8) is typically synthesized via a multi-step process involving the bromination of 2,3-difluoroaniline followed by a nitration step. The synthesis involves the use of catalysts such as iron(III) chloride and concentrated sulfuric acid, and the reaction is carried out under anhydrous conditions to achieve high yield and selectivity.