Hydrochloric Acid → 3-Cyano-4-isobutylbenzoic acid

참여 물질

반응 단계

Methyl 3-cyano-4-(2-methylpropyl)benzoate (D31) (233 mg, 1.072 mmol) was dissolved in ethanol (4 ml) and 2M aqueous sodium hydroxide (1 ml, 2 mmol) was added. The reaction was stirred for 1 h. 2M aqueous HCl (10 mL) was added and the mixture extracted with dichloromethane (20 mL+10 mL). The organic phases were isolated and dried by phase separator and combined before the solvent was removed in vacuo to give the title compound as a white solid (203 mg, 0.999 mmol). δH (d6-DMSO, 400 MHz) 13.43 (1H, br. s), 8.29 (1H, d), 8.14 (1H, dd), 7.59 (1H, d), 2.74 (2H, d), 1.96 (1H, m), 0.91 (6H, d). MS (ES): C12H13NO2 requires 203; found 202 (M−H+).

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