反应详情

温度

85 °C

A mixture of 4-bromo-2-fluoro-nitrobenzene (4 g, 18.2 mmol) and tert-butylamine (4.78 mL, 45.5 mmol, 2.5 eq) in EtOH (80 mL) is stirred for 15 h at 85° C., allowed to cool and concentrated. The residue purified by silica gel column chromatography (Hex/EtOAc, 1:0→99:1) to afford 4.8 g of the title compound as an orange solid: ESI-MS: 273.0/275.0 [M+H]+; tR=5.68 min (System 1); TLC: Rf=0.49 (Hex/EtOAc, 9:1).

1. temperatureto cool
2. concentrationconcentrated
3. customThe residue purified by silica gel column chromatography (Hex/EtOAc, 1:0→99:1)