反应详情

Sodium nitrite (0.34 g, 4.9 mmol) in water (1.5 mL) was added to a solution of the amine (1.00 g, 4.7 mmol) in ethanol (7.0 mL) at room temperature. 5M Hydrochloric acid (1.0 mL, 4.9 mmol) was added and the resulting dark red reaction mixture was stirred at room temperature for 2 h. Ethanol (20 mL) was added and the red crystals were filtered off and washed with diethyl ether. Drying of the crystals gave the title compound (0.68 g, 60%).

1. customthe resulting dark red reaction mixture
2. filtrationthe red crystals were filtered off
3. washwashed with diethyl ether
4. customDrying of the crystals