PROCESS FOR THE FREE-RADICAL CHLORINATION OR BROMINATION OF METHYL AROMATIC COMPOUNDS

摘要

A b s t r a c t Methyl aromatic compounds of the formula (I) IMG (I), in which R1, R2 and R3 have the meaning given in the description, can be reacted in an advantageous manner using freeradicals to give the associated trichloromethyl or tribromomethyl aromatic compounds, if the reaction is carried out in the presence of one or more chlorides or bromides of the heavy alkali metals. Le A 28 673-US