Reacción #4478
ord-78fc489b6c4b4be39c7bb6d9b5564ba7
Ecuación de reacción
Reactivos
Ninguno
Condiciones de reacción
Condiciones detalladas
See reaction.notes.procedure_details.
Tratamiento posterior
- 1Temperaturaheated
- 2Temperaturato reflux for 14 h
- 3Temperaturato cool
- 4Filtraciónthe precipitate filtered
- 5Lavadowashed with isopropyl acetate and ether
- 6Otroto give a solid
- 7OtroRecrystallisation from methanol
Procedimiento
1,3-Cyclohexanedione (3.1 g) and the product of Stage (i) (5.6 g) in ethanol (196 ml) and water (39 ml) was stirred at room temperature for 3 h and then heated to reflux for 14 h. The resulting solution was allowed to cool, poured into water (500 ml) and the precipitate filtered and washed with isopropyl acetate and ether to give a solid. Recrystallisation from methanol gave the title compound as a solid (2.5 g) m.p. 235°-237°.