Triphenylphosphine → 1-(3-Bromopropyl)-4-(trifluoromethyl)benzene
反応式
[F:1][C:2]([F:14])([F:13])[C:3]1[CH:8]=[CH:7][C:6]([CH2:9][CH2:10][CH2:11]O)=[CH:5][CH:4]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[Br:34]N1C(=O)CCC1=O>C(Cl)Cl>[Br:34][CH2:11][CH2:10][CH2:9][C:6]1[CH:7]=[CH:8][C:3]([C:2]([F:14])([F:13])[F:1])=[CH:4][CH:5]=1参加物
5
実験手順
Compound 11-1 (9.53 g) was dissolved in methylene chloride (100 ml), triphenylphosphine (13.3 g) and N-bromosuccinimide (8.97 g) were added under ice-cooling, and the mixture was stirred under ice-cooling for 1 hr, and further at room temperature for 3 hr. The reaction mixture was washed with water and saturated brine, and dried over anhydrous magnesium sulfate. The solvent was evaporated under reduced pressure. Diethyl ether (200 ml) was added, and the precipitated triphenylphosphine oxide was filtered off. The concentrate of the filtrate was purified by silica gel column chromatography (hexane alone) to give the object product (10.1 g) as a colorless oil.