反应详情

Seventy-one grams of 5-phthalimido-2-pentanone ethylene ketal (0.26 moles) were suspended into 250 ml of 95% ethanol. Then 13.0 g of NH2 ·NH2 ·H2O (0.26 moles) was added and the reaction mixture was brought to reflux. The stirred mixture was refluxed for 2 hours. Ether (400 ml) was added to the cooled suspension, which was then treated with 40 g of potassium hydroxide in 150 ml of water. The two layers were separated and the aqueous The ether was combined and dried over sodium sulfate. The solvent was then removed under pressure and the remaining liquid that contained crude product was weighed.

1. temperatureto reflux
2. temperatureThe stirred mixture was refluxed for 2 hours
3. customThe two layers were separated
4. dry with materialdried over sodium sulfate
5. customThe solvent was then removed under pressure