反应详情

温度

0 °C

Combine 4-[5-(phenethylamino-methyl)-thiophen-2-yloxy]-benzonitrile ((139 mg, 0.415 mmol), K2CO3 (powder, 28 mg, 50 mol %) and DMSO (4 mL). Cool down to 0° C. Add hydrogen peroxide (0.124 mL) dropwise. Stir the resulting reaction mixture for 2.5 h. Partition the reaction mixture between H2O (5 mL) and CH2Cl2 (3×5 mL). Dry over sodium sulfate, filter and concentrate. Purify the residue through an SCX column with ammonia (2.0 M in methanol) to provide 105 mg (75%) of the title compound. Mass spectrum (ion spray): m/z=353.0 (M+1). 1H NMR (Cl3CD): 7.80 (d, J=8.7 Hz, 2H), 7.34-7.22 (m, 5H), 7.12 (d, J=8.7 Hz, 2H), 6.65 (d, J=3.37 Hz, 1H), 6.44 (d, J=3.7 Hz, 1H), 5.96 (bs, 2H), 3.93 (s, 2H), 2.97 (t, J=6.4 Hz, 2H), 2.85 (t, J=6.5 Hz, 2H).

1. customthe resulting reaction mixture for 2.5 h
2. customPartition the reaction mixture between H2O (5 mL) and CH2Cl2 (3×5 mL)
3. dry with materialDry over sodium sulfate
4. filtrationfilter
5. concentrationconcentrate
6. customPurify the residue through an SCX column with ammonia (2.0 M in methanol)