反应详情

温度

0 °C

Combine 4-(1-benzyl-piperidin-4-yloxy)-benzonitrile (74 mg, 0.25 mmol), DMSO (2.5 mL) and powdered potassium carbonate (18 mg, 0.13 mmol). Cool the resulting mixture to 0° C. and add hydrogen peroxide (76 μL). After addition, stir the mixture at room temperature for 1 h. Quench the reaction mixture with water (2 mL). Filter the precipitate formed rinsing with diethyl ether to give the title compound (57 mg, 73%). Mass spectrum (ion spray): m/z=311.1 (M+1); 1H NMR (CDCl3): 7.79 (ad, J=8.6 Hz, 3H), 7.32–7.21 (m, 5H), 7.14 (bs, 1H), 6.95 (d, J=8.6 Hz, 2H), 4.49–4.42 (m, 1H), 3.31 (s, 2H), 2.69–2.62 (m, 2H), 2.27–2.19 (m, 2H), 1.96–1.89 (m, 2H), 1.66–1.56 (m, 2H).

1. additionAfter addition
2. customQuench the reaction mixture with water (2 mL)
3. filtrationFilter the precipitate
4. customformed
5. washrinsing with diethyl ether