反应详情

To a stirred solution of 1-phenyl-cyclopentanecarbaldehyde 22-01 (23 g, 132.18 mmol) in methanol (300 mL) was added NaBH4 (10.04 g, 264.36 mmol) at 0° C. The mixture was stirred at room temperature for 16 h. After completion of the reaction, it was quenched with aqueous ammonium chloride solution. The mixture was concentrated as much as possible, then diluted with water, extracted with ethyl acetate and the separated organic part was dried over sodium sulfate and concentrated under reduced pressure to get a crude product which was purified using a normal silica column using 5% ethyl acetate in hexane to of ford (1-phenyl-cyclopentyl)-methanol (23-01) (4.5 g, 19.35%) as a yellow liquid.

1. customAfter completion of the reaction, it
2. customwas quenched with aqueous ammonium chloride solution
3. concentrationThe mixture was concentrated as much as possible,
4. additionthen diluted with water
5. extractionextracted with ethyl acetate
6. dry with materialthe separated organic part was dried over sodium sulfate
7. concentrationconcentrated under reduced pressure