Sodium Hydroxide → HCID 22048444, Verbindung
Reaktionsgleichung
C[O:2][C:3](=[O:16])[CH2:4][C:5]1[CH:10]=[CH:9][CH:8]=[C:7]([O:11][CH:12]([CH2:14][CH3:15])[CH3:13])[CH:6]=1.[OH-].[Na+]>CO>[CH:12]([O:11][C:7]1[CH:6]=[C:5]([CH2:4][C:3]([OH:16])=[O:2])[CH:10]=[CH:9][CH:8]=1)([CH2:14][CH3:15])[CH3:13]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Reaktionsbedingungen
- Temperatur
- 60 °C
Versuchsvorschrift
To 3-hydroxyphenyl acetic acid methyl ester (27.3 g, 165 mmol) in acetone (200 mL) was added 2-iodobutane (55 mL, 478 mmol) and potassium carbonate (83 g, 601 mmol). The mixture was heated at 65° C. for 48 hrs and filtered through a Celite® pad. The filtrate was concentrated in vacuo and the residue was diluted with dichloromethane and water. The aqueous phase was extracted with dichloromethane (3×100 mL). The combined extracts were washed with saturated sodium chloride (50 mL), dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo to afford (3-sec-butoxy-phenyl)-acetic acid methyl ester. To a solution of (3-sec-butoxy-phenyl)-acetic acid methyl ester in methanol (200 mL) was added 10N sodium hydroxide solution (50 mL). The reaction mixture was stirred at 60° C. for 4 hrs. The solvent was evaporated and the mixture was acidified to pH=3 by addition of 6N hydrogen chloride solution. The aqueous phase was extracted with dichloromethane (3×100 m]L). The combined extracts were washed with saturated aqueous sodium chloride solution (80 mL), dried over anhydrous magnesium sulfate, filtered and concentrated in vacuo to afford (3-sec-butoxy-phenyl) acetic acid (25 g, 73% yield) as a light brown oil.