Ethyl(5-methoxy-1-benzofuran-3-yl)acetate → 2-(5-Methoxy-1-benzofuran-3-yl)ethanol
反応式
[H-].[H-].[H-].[H-].[Li+].[Al+3].C([O:9][C:10](=O)[CH2:11][C:12]1[C:16]2[CH:17]=[C:18]([O:21][CH3:22])[CH:19]=[CH:20][C:15]=2[O:14][CH:13]=1)C>C1COCC1>[CH3:22][O:21][C:18]1[CH:19]=[CH:20][C:15]2[O:14][CH:13]=[C:12]([CH2:11][CH2:10][OH:9])[C:16]=2[CH:17]=1参加物
4
実験手順
To a stirred suspension of LiAlH4 (200 mg, excess) in THF at 0° C., ethyl(5-methoxy-1-benzofuran-3-yl)acetate (1.17 g, 5 mmol) in THF (20 mL) was added slowly. After the addition, reaction mixture was stirred at room temperature for 1 hr and quenched with saturated NH4Cl solution. The product was extracted with chloroform and washed well with water. It was dried over anhydrous MgSO4; filtered and concentrated. The product, 2-(5-methoxy-1-benzofuran-3-yl)ethanol, obtained as white oil, was pure enough and taken to the next step without purification. Yellow oil; Yield: 900 mg (93%); 193 (M+H).