反应详情

Phenethylamine (50 g) was dissolved in 1000 mL of glacial acetic acid in a pressure vessel, followed by addition of platinum oxide (15 g). After shaking under 4 atm of hydrogen for 48 h, the reaction was filtered and the acetic acid was removed under reduced pressure. The residue was taken up in water (1000 mL), basified with 5N NaOH, and washed with ether (5×250 mL). The ether extracts were washed with brine (250 mL), dried (MgSO4), filtered and concentrated to afford a light yellow oil which was purified by fractional distillation at atmospheric pressure (bp 185° C., 49.5 g, 94%).

1. filtrationthe reaction was filtered
2. customthe acetic acid was removed under reduced pressure
3. washwashed with ether (5×250 mL)
4. washThe ether extracts were washed with brine (250 mL)
5. dry with materialdried (MgSO4)
6. filtrationfiltered
7. concentrationconcentrated
8. customto afford a light yellow oil which
9. distillationwas purified by fractional distillation at atmospheric pressure (bp 185° C., 49.5 g, 94%)