反应详情

温度

20 °C

A four neck flask (3 liters) equipped with a thermometer, a reflux condenser and a stirrer was charged with 121.2 g (0.6 mol) of 3-hydroxy-2-naphthohydrazide, 1.14 g (0.006 mol) of p-toluenesulfonic acid and 2 liters of acetone and then heated under reflux for 5 hours. The reaction liquid was cooled down to 20° C. or lower, and then crystal was filtered off and dried under reduced pressure, whereby the intended compound (slightly yellow crystal) was obtained.

1. customA four neck flask (3 liters) equipped with a thermometer, a reflux condenser and a stirrer
2. temperatureheated
3. temperatureunder reflux for 5 hours
4. customThe reaction liquid
5. filtrationlower, and then crystal was filtered off
6. customdried under reduced pressure, whereby the intended compound (slightly yellow crystal)
7. customwas obtained