反应详情

mCPBA (10.0 g, 44.6 mmol) was added slowly to a mixture of 6,7-dihydro-5H-cyclopenta[b]pyridine (from Aldrich, 5.0 g, 42 mmol) in DCM (50 mL). The reaction mixture was stirred at room temperature for 2 h. The solution was then washed with aq. Na2S2O3 (50 mL) and 1 M NaOH (50 mL). The aqueous layer was extracted with DCM (5×70 mL). The combined organic layers were dried, filtered and concentrated under reduced pressure to give the sub-title compound (4.5 g, 79%). LCMS calc. for C8H10NO (M+H)+: m/z=136.1. Found: 136.2.

1. washThe solution was then washed with aq. Na2S2O3 (50 mL) and 1 M NaOH (50 mL)
2. extractionThe aqueous layer was extracted with DCM (5×70 mL)
3. customThe combined organic layers were dried
4. filtrationfiltered
5. concentrationconcentrated under reduced pressure