[Br:1][CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][OH:18].N1C=CN=C1.[Si:24](Cl)([C:27]([CH3:30])([CH3:29])[CH3:28])([CH3:26])[CH3:25].[Cl-].[NH4+]>ClCCl>[Br:1][CH2:2][CH2:3][CH2:4][CH2:5][CH2:6][CH2:7][CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH2:13][CH2:14][CH2:15][CH2:16][CH2:17][O:18][Si:24]([C:27]([CH3:30])([CH3:29])[CH3:28])([CH3:26])[CH3:25]16-Bromohexadecan-1-ol (1 g) was dissolved in 20 ml of dichloromethane, and imidazole (317.9 mg) and t-butyldimethylsilyl chloride (701.4 mg) were added to this solution. The reaction mixture was stirred at room temperature for four hours. Saturated ammonium chloride solution was added to the reaction mixture, which was then extracted three times with dichloromethane. The organic layer was washed with saline solution and dried over magnesium sulfate, and the solvent was distilled off under reduced pressure. Purification of the residue by silica gel flash chromatography (heptane:ethyl acetate=7:3) gave (16-bromohexadecyloxy)-t-butyldimethylsilane as a colorless oil at an 81% yield.
読み込み中…
