Citric Acid → HCID 23157653, compound

Participants

Reaction Steps

To a solution of ethyl [4-({[4′-(2-ethoxyethoxy)-2′,6′-dimethylbiphenyl-3-yl]methyl}amino)phenoxy]acetate (0.37 g, 0.77 mmol) in a mixture of methanol (10 mL) and tetrahydrofuran (10 mL) was added an aqueous solution (5 mL) of potassium hydroxide (0.26 g, 3.94 mmol), and the mixture was stirred at room temperature for 18 hr. Water was added to the reaction mixture, and the mixture was weakly acidified with 10% aqueous citric acid solution and extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous sodium sulfate, and concentrated under reduced pressure. The obtained crystals were washed with diethyl ether-hexane to give the title compound as colorless prism crystals. yield 91%.

Provenance & Evidence