Sodium borohydride → HCID 69265731, compound

Participants

Reaction Steps

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:

Provenance & Evidence