Benzenesulfonyl chloride → Benzenesulfonic acid 3-hydroxy-5-methylphenyl ester

Beteiligte Stoffe

Reaktionsschritte

24.8 g (200 mmol) 5-methyl-resorcinol, 200 ml ether, 400 ml sodium hydrogen carbonate solution and 28.2 ml (220 mmol) benzenesulfonyl chloride were stirred for 2 d at room temperature, the organic phase was separated, the aqueous phase was extracted with ether, the combined organic phases were dried over sodium sulfate, filtered, the solvent was removed in a vacuum and 52 g (quant.) benzenesulfonic acid-3-hydroxy-5-methyl-phenyl ester was obtained. Fp 108°-110° C.

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