反应详情

4-Methoxythiophenol (50 g, 0.357 mol), 2-chloroethylamine monohydrochloride (39.8 g, 0.343 mol.), K2CO3(78.8 g, 0.57 mol) and diisopropyl ethylamine (32 mL, 0.178 mol) were mixed in 200 mL of THF. The mixture was degassed for 5 min. under reduced pressure and refluxed under argon overnight. The solvent was removed and water (300 mL) was added to the flask. The mixture was extracted with dichloromethane (3×200 mL). The organics were collected, dichloromethane was removed and 50 mL conc. HCl was added, followed by 200 mL of water. The solution was extracted with 1:1 EtOAc/hexane (3×200 mL). The aqueous layer was adjusted to pH 10 with 2 M NaOH, and was extracted with dichloromethane (3×200 mL). The combined organic solution was dried over anhydrous sodium sulfate. Removal of solvent provided 61 g of the target compound as a colorless liquid, with a yield of 97%.

1. customThe mixture was degassed for 5 min. under reduced pressure
2. temperaturerefluxed under argon overnight
3. customThe solvent was removed
4. additionwater (300 mL) was added to the flask
5. extractionThe mixture was extracted with dichloromethane (3×200 mL)
6. customThe organics were collected
7. customdichloromethane was removed
8. addition50 mL conc. HCl was added
9. extractionThe solution was extracted with 1:1 EtOAc/hexane (3×200 mL)
10. extractionwas extracted with dichloromethane (3×200 mL)
11. dry with materialThe combined organic solution was dried over anhydrous sodium sulfate
12. customRemoval of solvent