反应 #3525325
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openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US08642801B2
反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: To a solution of (1S,2S)-2-amino-3-methoxy-1-phenyl-1-propanol (1.0 g, 5.5 mmol) in tetrahydrofuran (10 mL) was slowly added 1,3-propane sultone (662 mg, 5.3 mmol). The mixture was stirred at reflux for 2.5 h. The reaction mixture was cooled to room temperature. The solid material was collected by filtration, washed with acetone (2×25 mL). The crude product was suspended 80% Acetone/EtOH. The suspension was stirred at reflux for 30 seconds. The solid product was collected by filtration and dried in a vacuum oven (50° C.), to afford compound EG (1.0 g, 63%). 1H NMR (D2O, 500 MHz) δ ppm 7.32 (m, 5H), 4.77 (d, 1H, J=9.8 Hz), 3.53 (m, 1H), 3.37 (m, 1H). 3.26 (m, 1H), 3.17 (m, 6H), 2.91 (t, 2H, J=7.3 Hz), 2.07 (m, 2H). 13C NMR (D2O, 125 MHz) δ ppm 139.09, 129.33, 129.27, 127.11, 70.85, 66.29, 62.62, 58.76, 48.14, 44.24, 21.47. [α]D=+42.6° (c=0.00091 in water), ES-MS 302 (M−1). at reflux for 2.5 h The solid material was collected by filtration washed with acetone (2×25 mL) The suspension was stirred at reflux for 30 seconds The solid product was collected by filtration dried in a vacuum oven (50° C.) to afford compound EG (1.0 g, 63%)
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