Hydrochloric Acid → HCID 67004126, compound

Participants

Reaction Steps

The 2,2-dimethoxyethyl 3-(2,2-dimethoxyethoxy)-2-methyl-4-(methylsulfonyl)benzoate obtained in the above step (1) was dissolved in methanol (20 mL), and an aqueous sodium hydroxide solution (2 mL) at a concentration of 20 wt % was added thereto at room temperature. After stirring for 30 minutes, 100 mL of 1N hydrochloric acid was added to the reaction solution, followed by extraction with ethyl acetate (200 mL). The organic layer was washed twice with a saturated brine and dried over anhydrous sodium sulfate. The solvent was distilled off under reduced pressure to obtain 3-(2,2-dimethoxyethoxy)-2-methyl-4-(methylsulfonyl)benzoic acid (390 mg) as a white solid.

Provenance & Evidence