反应详情

4′-((tert-Butyldimethylsilyl)oxy)-2′,6′-dimethylbiphenyl-3-carbaldehyde 3e (2.60 g, 38.10 mmol) was dissolved in 80 mL of methanol, followed by addition of sodium borohydride (1.66 g, 43.95 mmol). The reaction mixture was stirred for 3 hours. The resulting mixture was mixed with 50 mL of acetone and concentrated under reduced pressure. The residue was mixed with 200 mL of ethyl acetate, washed with water (60 mL×2), dried with anhydrous sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure to obtain the crude title compound (4′-((tert-butyldimethylsilyl)oxy)-2′,6′-dimethylbiphenyl-3-yl)methanol 3f (9.80 g, yield 98.0%) as a colorless oil.

1. concentrationconcentrated under reduced pressure
2. additionThe residue was mixed with 200 mL of ethyl acetate
3. washwashed with water (60 mL×2)
4. dry with materialdried with anhydrous sodium sulfate
5. filtrationfiltered
6. concentrationThe filtrate was concentrated under reduced pressure