| 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 a polymeric compound having a plurality of iodinated benzene nuclei, such as an iodinated polystyrene resin.
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