4-tert-butylbenzyl bromide preparing method

The invention belongs to the field of chemical synthesis and provides a 4-tert-butylbenzyl bromide preparing method. The method comprises the steps of providing raw materials p-methyl tertiary butyl, hydrobromic acid and chlorite; dissolving p-methyl tertiary butyl in an organic solvent for oxidation reaction with hydrobromic acid and chlorite under the light condition, wherein oxidation reaction is conducted for 4-6 h, and the equation is shown in the specification. According to the method, the green oxidant and hydrobromic acid are adopted to provide the bromine source, selectivity is high, the conversion rate of obtained 4-tert-butylbenzyl bromide is high, the purity and yield are high, environment pollution is avoided, and the environment protection idea is realized. Furthermore, operation is easy, reaction is easy to control, reaction time is short, the technology is reliable, and industrialization is facilitated.