反应详情

A 1 liter round bottom flask was charged with sodium methoxide (41.00 grams, 0.759 mol), ethanol (500 mL), benzophenone (125.00 grams, 0.686 mol) and cyclopentadiene (100.0 mL, 1.213 mol). This was stirred for 7 days before the orange precipitate was collected by suction filtration and washed with 50 mL ethanol. The collected solid was boiled in 200 mL methanol and allowed to cool. The precipitate was collected by suction filtration and washed with 75 mL methanol. The orange solid was dried under high vacuum for 48 hours, giving 136.18 grams 6,6-diphenylfulvene (86.2%).

1. filtrationwas collected by suction filtration
2. washwashed with 50 mL ethanol
3. temperatureto cool
4. filtrationThe precipitate was collected by suction filtration
5. washwashed with 75 mL methanol
6. customThe orange solid was dried under high vacuum for 48 hours