Bromine → HCID 178465859, compound

Participants

Reaction Steps

To a stirred suspension of 2-acetyl-3-methyl-quinoxaline-1,4-dioxide (343 g. 1.57 mole) in 3 l. of methanol was added 89 ml. (1.74 mole) of bromine over a period of two hours. The reaction mixture was then stirred for five days at room temperature. The resulting yellow solid was collected by suction filtration, washed with methanol and ether, and dried to give 331 g. (71 percent yield) of the title compound, mp -164°-166° .

Provenance & Evidence