反应详情

A mixture of 2-butyrylfluorene (11.3 g.), powdered potassium hydroxide (4.16 g.) and 100% hydrazine hydrate (9 ml.) in ethylene glycol (104 ml.) was refluxed for one hour with stirring. The mixture was then slowly distilled until the boiling-point reached 185° and then heated to reflux for 3 hours. The cooled mixture was treated with water (ca. 300 ml.) and the produce was isolated with ether in the usual manner. Recrystallisation from methanol gave 2-butyfluorene, m.p. 65°-66.5° .

1. temperaturewas refluxed for one hour
2. distillationThe mixture was then slowly distilled until the boiling-point
3. customreached 185°
4. temperatureheated
5. temperatureto reflux for 3 hours
6. additionThe cooled mixture was treated with water (ca. 300 ml.)
7. customthe produce was isolated with ether in the usual manner
8. customRecrystallisation from methanol