The study of synthesizing  alkylaromatic chlorohydrocarbons, as well as current state of their catalytic oxidation is considered. The posibility of catalytic oxidation of chlorotoluenes in the presence of varietyheterogeneous catalytic systems was shown_.  The effects of active components, reaction time and reaction temperature on the performance of catalysts were also investigated. The appropriate optimum reaction condition for the activity and selectivity for received catalysts was designated and under that condition the highest value of conversion chlorotoluenes was determined. Meanwhile, to neutralize ecological harmful substance very important greener and safer raw materials (benzaldehydes, maleic anhydride and  their chloro analogues) have been also obtained.