反应详情

温度

130 °C

To a stirred solution of methanesulfonic acid 1-(4-chlorophenyl)-cyclopentylmethyl ester (320) (14 g, 48.48 mmol) in dimethyl sulfoxide (50 mL) were added KI (805 mg, 4.85 mmol) and NaCN (3.6 g, 72.72 mmol) and stirred for 130° C. for 4 h. After completion of reaction, cold water (200 mL) was added. After extraction with ethyl acetate (3×100 mL), the combined organic parts were washed with saturated ferrous sulphate solution (2×100 mL), water (2×100 mL) and brine (100 mL) and dried and concentrated. The crude product was purified by CombiFlash column (10-20% ethyl acetate in hexane was used as eluent) to get [1-(4-chlorophenyl)-cyclopentyl]-acetonitrile (321) (8.2 g, 77%) as a light yellow liquid.

1. additionwas added
2. extractionAfter extraction with ethyl acetate (3×100 mL)
3. washthe combined organic parts were washed with saturated ferrous sulphate solution (2×100 mL), water (2×100 mL) and brine (100 mL)
4. customdried
5. concentrationconcentrated
6. customThe crude product was purified by CombiFlash column (10-20% ethyl acetate in hexane was used as eluent)