反应 #3389031
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openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US07973181B2
反应条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.
实验步骤: A solution of 4-bromobenzylamine (5 g, 26.9 mmol) in THF (50 ml) and water (50 ml) was cooled down to 0° C. with sodium hydroxide (1.13 g, 28.2 mmol). Benzyl chloroformate (4.0 ml, 28.2 mmol) was added slowly and the reaction mixture was stirred at 0° C. for 1 h and at r.t. for 18 hours. Brine (50 ml) and EtOAc (50 mL) were added and the phases were separated. The aqueous phase was extracted with EtOAc (40 mL). The organic phase was dried over magnesium sulfate, filtered and concentrated to dryness to yield a light pink solid (9.27 g, 100%). 1H NMR (300 MHz, CDCl3), δ: 4.34 (2 H, d, J=6.0 Hz, CH2NH), 5.14 (2 H, s, OCH2), 7.17 (2 H, d, J=8.1 Hz, Ar), 7.33-7.40 (5 H, m, Ar), 7.46 (2 H, d, J=8.3 Hz, Ar) the phases were separated The aqueous phase was extracted with EtOAc (40 mL) The organic phase was dried over magnesium sulfate filtered concentrated to dryness
来源 ID: ord-12873b7f7b9a41208151a2626fc12592