反应详情

A suspension of 2.18 g 3-acetyl-7-methoxycoumarin and 1.65 g p-ethoxybenzaldehyde in 100 ml alcohol was heated under reflux on a steam bath. Acetonitrile was added until solution was attained. Fifty drops of piperidine were added and the reaction mixture heated under reflux for 90 minutes. An additional fifty drops of piperidine were added and the solution was heated under reflux another hour. The product separated upon cooling and was washed with alcohol before being recrystallized from a mixture of alcohol and acetonitrile.

1. temperaturewas heated
2. temperatureunder reflux on a steam bath
3. temperaturethe reaction mixture heated
4. temperatureunder reflux for 90 minutes
5. temperaturethe solution was heated
6. temperatureunder reflux another hour
7. customThe product separated
8. temperatureupon cooling
9. washwas washed with alcohol
10. custombefore being recrystallized from a mixture of alcohol and acetonitrile