production method | the preparation method is to dissolve 3,4 '-dichlorodiphenyl ether in a solvent such as dichloroethane, further, anhydrous aluminum trichloride was added, and then a dichloroethane solution of acetyl chloride was added dropwise, and the mixture was stirred with dropwise addition, and the temperature was maintained at room temperature. After completion of the reaction, the mixture was stirred for 1H, poured into ice water to separate the oil layer, dried with Na2SO4 and then dedissolved, and the residue was post-treated to obtain the product. |