反应详情

温度

55 °C

Methyl 2-bromoacetate (621 g, 4.1 mol) was added dropwise to a mixture of (1R)-1-phenylethanamine (410 g, 3.4 mol) and triethylamine (377 g, 3.7 mol) in EtOAc (4.5 L) at r.t. The mixture was then stirred at 50-60° C. overnight then cooled to r.t. The mixture was then washed with water (800 mL) and brine (100 mL), dried (Na2SO4) and concentrated in vacuo to give the title compound (587 g, 90%) as yellow oil; 1H NMR: (CDCl3) 1.29 (3H, d), 3.13-3.24 (2H, m), 3.60 (3H, s), 3.68-3.71 (1H, m), 7.13-7.26 (5H, m).

1. temperaturethen cooled to r.t
2. washThe mixture was then washed with water (800 mL) and brine (100 mL)
3. dry with materialdried (Na2SO4)
4. concentrationconcentrated in vacuo