Studies on the bromination of pyrimidine. A facile synthesis of 5‐bromopyrimidine

Abstract
Three methods for hromination of pyrimidine were investigated: (a) the bromination of pyrimidine hydrochloride in aromatic solvents, (b) the vapor phase bromination of pyrimidine, and (c) the pyrolysis of pyrimidine hydrochloride perbromide. The addition of bromine to a slurry of pyrimidine hydrochloride in nitrobenzene proved to be superior and afforded excellent yields of 5‐bromopyrimidine.