反应详情

A mixture of 4-fluorobenzenethiol (9.86 g, 77 mmol), 1-chloro-4-nitrobenzene (12.72 g, 81 mmol) and potassium carbonate (21.25 g, 154 mmol) in acetonitrile (300 mL) is stirred at room temperature under inert atmosphere for 48 h. The mixture is diluted with water (750 mL) and the aqueous phase is extracted with dichloromethane (2×500 mL). The combined organic layers are dried over sodium sulphate, filtered and concentrated under reduced pressure. The desired product is isolated in the presence of some impurities as a yellow solid (19.4 g, 78 mmol) (HPLC-MS Method 2: retention time: 2.132 min, m/z no mass signal).

1. extractionthe aqueous phase is extracted with dichloromethane (2×500 mL)
2. dry with materialThe combined organic layers are dried over sodium sulphate
3. filtrationfiltered
4. concentrationconcentrated under reduced pressure