Preparation of 2-Bromo-4-nitroethylbenzene and a,~-Dibromo-4-nitroethylbenzene 75.5 g.(0.5 mole) was brominated in the presence of 2.3 g. of iron powder.* After the gentle application of heat to start the reaction, a total of 81.6 g.(0.51 mole) of bromine was addet at such a rate as to maintain the temperature at 60-70. After standing over-night the mixture was heated, first on a steam-bath, and finally to 150'until the evolution of hydrogen ...
