Process for 1,2,4,5-tetrachlorobenzene

摘要

The process for preparing 1,2,4,5-tetrachlorobenzene, the process comprising contacting at reactive conditions 1,2,4- trichlorobenzene and chlorine gas in the presence of a catalytic amount of at least one Lewis acid, such as ferric trichloride, is improved by using as a cocatalyst at least one iodoaryl compound, such as p- iodoanisole.