反应详情

To a round bottom flask containing (R)—N—((S)-1-(2-fluoro-4-(prop-1-en-2-yl)phenyl)ethyl)-2-methylpropane-2-sulfinamide (1.02 g, 3.60 mmol) was added dioxane (7 mL). To this homogenous solution was then added HCl in Dioxane (1.80 mL, 7.20 mmol, 4 M). Resulting reaction mixture allowed to stir 10 min at room temperature. Volatiles removed. Et2O was added and mixture sonnicated briefly. Volatiles removed again. Et2O was added and the solid collected and washed with Et2O to afford a white HCl salt of (S)-1-(2-fluoro-4-(prop-1-en-2-yl)phenyl)ethanamine (742 mg, 3.44 mmol, 96% yield). 1H NMR (400 MHz, D2O) δ 1.65 (d, J=6.94 Hz, 3H) 2.12 (s, 3H) 5.23 (s, 1H) 5.50 (s, 1H) 7.37 (d, J=13.06 Hz, 1H) 7.43 (m, 2H). LCMS m/z 163.2 (deamino fragment) (M+H)+, Rt 0.56 min.

1. customResulting
2. customreaction mixture
3. customVolatiles removed
4. additionEt2O was added
5. customVolatiles removed again
6. additionEt2O was added
7. customthe solid collected
8. washwashed with Et2O