反应详情

To the suspension of 5-chloro-2-(1,3,4,5-tetrahydro-2H-2-benzazepin-2-yl)quinolin-4-amine (1.5 g, 4.6 mmol) in concentrated hydrochloric acid (10 mL) was added a solution of sodium nitrite (390 mg, 5.6 mmol) in water at −10° C. After the addition, the reaction mixture was stirred for further 30 minutes, and then sodium chloride (2 g) was added. The resulting mixture was stirred at room temperature overnight and neutralized with saturated sodium bicarbonate, extracted with dichloromethane (50 mL×2). The organic layers were combined and dried over sodium sulfate, and then concentrated under reduced pressure to give the crude product. It was used in next step without further purification.

1. additionAfter the addition
2. extractionextracted with dichloromethane (50 mL×2)
3. dry with materialdried over sodium sulfate
4. concentrationconcentrated under reduced pressure