反应详情

A mixture 7-nitro-2-aminonaphthalene (1 g, 5.31 mmol) and nitrosonium tetrafluoroborate (931 mg, 7.97 mmol) in dichloromethane (10 mL) is stirred at room temperature for 12 hours and at 110° C. for 1 hour. After cooling to room temperature, the reaction mixture is concentrated by rotary evaporator under high vacuum. The residual oil is purified by flash chromatography on silica gel (3:1 hexanes/EtOAc) to give 7-fluoro-2-nitronaphthalene as a dark red solid.

1. concentrationthe reaction mixture is concentrated by rotary evaporator under high vacuum
2. customThe residual oil is purified by flash chromatography on silica gel (3:1 hexanes/EtOAc)