反应详情

温度

60 °C

Into a 100-mL round-bottom flask, was placed a solution of tert-butyl 3-(4-cyanophenyl)-3-fluoroazetidine-1-carboxylate (compound 43.3, 1.00 g, 3.62 mmol) in dioxane (10 mL) and HCl in dioxane (4 M in dioxane, 10 mL, 40 mmol). The resulting mixture was stirred for 1 h at 60° C., then cooled and concentrated under reduced pressure. The residue was washed with EtOAc (20 mL) and the product solids were collected by filtration to yield 522 mg (68%) of the title compound as a white solid. m/z (ES+) 177 (M+H)+. 1H NMR (300 MHz, CD3OD): δ 7.91 (d, J=7.8 Hz, 2H), 7.82 (d, J=8.1 Hz, 2H), 4.85-4.52 (m, 4H).

1. customInto a 100-mL round-bottom flask, was placed
2. temperaturecooled
3. concentrationconcentrated under reduced pressure
4. washThe residue was washed with EtOAc (20 mL)
5. filtrationthe product solids were collected by filtration