How is 5-Bromo-6-quinoxalinamine (CAS: 50358-63-9) typically synthesized?

5-Bromo-6-quinoxalinamine is commonly synthesized by the bromination of 6-aminoquinoxaline in the presence of a Lewis acid catalyst such as aluminum bromide. The reaction proceeds with high selectivity and yields up to 90%. The reaction conditions typically involve heating the mixture under an inert atmosphere to ensure purity and yield.