反应详情

温度

80 °C

A suspension of Cs2CO3 (23.1 g, 71.0 mmol), 1-(2-chloroethyl)pyrrolidine, hydrochloride (9.0 g, 53.2 mmol) and 2-chloro-4-nitrophenol (3.0 g, 17.8 mmol) in DMF (50 mL) was heated at 80° C. for 4 days. After dilution with H2O (50 mL), the mixture was extracted with EtOAc (2×100 mL). The combined organic layers were washed with H2O (30 mL), then with brine prior to drying over MgSO4. After removal of the solvent under vacuum, the residue was chromatographed on silica gel using 5%-10% gradient MeOH/CH2Cl2 to yield yellow brownish solid (1.5 g, 31%) MS (ESI) 271 (M+H)+.

1. extractionAfter dilution with H2O (50 mL), the mixture was extracted with EtOAc (2×100 mL)
2. washThe combined organic layers were washed with H2O (30 mL)
3. dry with materialwith brine prior to drying over MgSO4
4. customAfter removal of the solvent under vacuum
5. customthe residue was chromatographed on silica gel using 5%-10% gradient MeOH/CH2Cl2