[O:1]([C:8]1[CH:9]=[C:10]([CH2:14][CH2:15][CH2:16][C:17]([C:20]2[CH:25]=[CH:24][C:23]([O:26]C)=[CH:22][CH:21]=2)([CH3:19])[CH3:18])[CH:11]=[CH:12][CH:13]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Br.C(O)(=O)C>O>[O:1]([C:8]1[CH:9]=[C:10]([CH2:14][CH2:15][CH2:16][C:17]([C:20]2[CH:21]=[CH:22][C:23]([OH:26])=[CH:24][CH:25]=2)([CH3:19])[CH3:18])[CH:11]=[CH:12][CH:13]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1A mixture of 5.0 g of 1-(3-phenoxyphenyl)-4-(4-methoxyphenyl)-4-methylpentane, 30 ml of 47% hydrobromic acid and 30 ml of acetic acid was heated under reflux for 8 h. After cooling to room temperature, the reaction mixture was poured into water. After extraction with benzene, the benzene solution was washed with water and dried. Benzene was distilled off under reduced pressure and the obtained oily product was purified according to column chromatography (silica gel, developer: benzene) to obtain 4.2 g of 1-(3-phenoxyphenyl)-4-(4-hydroxyphenyl)-4-methylpentane.
Wird geladen…