Sodium borohydride → HCID 69265731、化合物
反応式
[Si:1]([O:8][C:9]1[CH:16]=[CH:15][C:12]([CH:13]=[O:14])=[C:11]([Cl:17])[CH:10]=1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].[BH4-].[Na+]>CO>[Si:1]([O:8][C:9]1[CH:16]=[CH:15][C:12]([CH2:13][OH:14])=[C:11]([Cl:17])[CH:10]=1)([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2]参加物
4
実験手順
To a stirred solution of 4-{[tert-butyl(dimethyl)silyl]oxy}-2-chlorobenzaldehyde (WO 2003051797, 1.58 g, 5.83 mmol) in methanol (5 mL) was added sodium borohydride (264 mg, 7.00 mmol) at 0° C. The mixture was stirred at room temperature for 3 h, and quenched by addition of aqueous ammonium chloride. The mixture was extracted with ethyl acetate (200 mL), and the organic layer was washed with brine, dried over sodium sulfate, and evaporated. The residue was purified by column chromatography on silica gel (100 g) eluting with hexane/ethyl acetate (20/1 to 10/1) to afford 1.51 g (95%) of the title compound as a colorless oil: