Aluminum(III) Chloride → 1-Chloro-2,4-dimethylbenzene

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0.5 g of anhydrous aluminium chloride was added to 15 g of 2,4-dimethylphenyl chloroformate and the mixture was heated at 200° C. for 3 hours at normal pressure. The reaction mixture was cooled and worked up as described in Example 1. 2,4-Dimethylchlorobenzene was obtained in a yield of 20%, which is considerable despite the unfavourable substitution pattern.

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