反应详情

A mixutre of 3-butyn-1-methanesulfate (1.48 g, 0.01 mol), 4-(p-chlorophenyl)-4-hydroxypiperidine (2.54 g, 0.012 mol) and potassium carbonate (4.14 g, 0.03 mol) in 25 mL of acetonitrile was refluxed for 12 hrs. The mixture was filtered and washed with ethyl acetate (3×30 mL). The filtrate was evaporated in vacuo and was purified by flash chromatography to give 2.30 g (87%) of the product as a white solid. mp 98-100° C. 1H NMR (CHCl3) 1.550 (s, 1 H), 1.749 (m, 2 H), 1.997 (m, 1 H), 2.109 (m, 2 H), 2.423 (m, 4 H), 2.655 (m, 2 H), 2.798 (m, 2 H), 7.329 (d, J=7.2 Hz, 2 H), 7.429 (d, J=7.2 Hz, 2 H).

1. filtrationThe mixture was filtered
2. washwashed with ethyl acetate (3×30 mL)
3. customThe filtrate was evaporated in vacuo
4. customwas purified by flash chromatography