反应详情

In a 200 mL recovery flask were placed 4.5 g (15 mmol) of 1-(4-bromophenyl)-2-phenylethanedione, 1.8 g (17 mmol) of 1,2-phenylenediamine, and 50 mL of ethanol. This solution was refluxed under nitrogen stream for 2.5 hours. After a predetermined time, the solution was cooled to room temperature, and the precipitated solid was collected by suction filtration. The collected solid was washed with ethanol, so that 5.2 g of target white powder was obtained with a yield of 92%.

1. customIn a 200 mL recovery flask were placed
2. temperatureThis solution was refluxed under nitrogen stream for 2.5 hours
3. filtrationthe precipitated solid was collected by suction filtration
4. washThe collected solid was washed with ethanol, so that 5.2 g of target white powder
5. customwas obtained with a yield of 92%