How is Tris[3-bromo-2,2-bis(bromomethyl)propyl] phosphate (CAS: 19186-97-1) typically synthesized?

Tris[3-bromo-2,2-bis(bromomethyl)propyl] phosphate is typically synthesized through a series of reactions involving bromination and phosphate esterification. Commonly, 1,3-dibromopropane is brominated and then reacted with phosphorus oxychloride or phosphorus pentoxide to form the desired phosphate ester. The reaction is typically carried out under anhydrous conditions and requires careful control of temperature and time to achieve high yields.