反应详情

A solution of 0.564 g (1.0 mmole) of daunomycin hydrochloride and 0.410 g (2.0 mmole) of 3,4-dichlorobenzhydrazide in 20 ml of methanol was stirred at room temperature in the dark for 3 days. The reaction mixture was stirred and slowly diluted with 100 ml of acetonitrile; the clear solution was allowed to stand at room temperature in the dark overnight. The resulting precipitate was collected, washed with 5 × 1 ml of methanol-acetronitrile (1:5) and dried at room temperature/0.1 mm/16 hr to give 0.619 g (82%) of the hydrazone (III), mp 249°-251° decomposed.

1. customto stand at room temperature in the dark overnight
2. customThe resulting precipitate was collected
3. washwashed with 5 × 1 ml of methanol-acetronitrile (1:5)
4. customdried at room temperature/0.1 mm/16 hr