1,3-Dimethoxybenzene → 2,4-Dimethoxybenzenesulfonic acid

Participants

Reaction Steps

To a solution prepared by adding 57 ml of chlorosulfonic acid to 250 ml of chloroform, was added dropwise 50 g of 1,3-dimethoxybenzene at a temperature below 5° C. with stirring. After stirring at 5° C. for 30 minutes, the crystals thus-precipitated were collected by filtration and washed with 100 ml of chloroform.

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