Reaktion #53429
ord-a00cbcb54b8f47ee845db3020a23743c
Reaktionsgleichung
Reagenzien
Keine
Reaktionsbedingungen
Detaillierte Bedingungen
See reaction.notes.procedure_details.
Aufarbeitung
- 1SonstigeThe reaction mixture is evaporated in vacuo
- 2Sonstigethe mixture is evaporated again
- 3Extraktionextracted several times with water
- 4SonstigeThe aqueous phase is evaporated to a very great extent
- 5Sonstigean oil being obtained which
- 6Sonstigecrystallizes on standing
Vorschrift
3.0 g (16.4 mmol) of the compound from Example I are boiled under reflux for 17 hours in 250 ml of a saturated methanolic ammonia solution. The reaction mixture is evaporated in vacuo, the residue is taken up in methanol and the mixture is evaporated again; this process is repeated a few times. The crude product is taken up in dichloromethane and extracted several times with water. The aqueous phase is evaporated to a very great extent, an oil being obtained which crystallizes on standing.