反应详情

In a 1 L recovery flask, 48.4 g of 7,7′-dibromo-3,3′,5,5′-tetramethyl-1,1′-biadamantane (100 mmol), 1,180 g of 1,3-dibromobenzene (5.00 mol) and a stirrer were charged. Under nitrogen flow, 26.7 g of aluminum bromide (100 mmol) was gradually added thereto with agitating at room temperature. After the addition, the mixture was agitated at 50° C. for seven hours. Reaction solution was added to 2 L of 1 mol/L hydrochloric acid aqueous solution. After an aqueous layer was separated and removed therefrom, 1 L of acetone was added. Solid thus precipitated was collected by filtration and dried under reduced pressure, thus obtaining 71.5 g of 7,7′-bis(3,5-dibromophenyl)-3,3′,5,5′-tetramethyl-1,1′-biadamantane (90.0 mmol; yield: 90.0%).

1. additionAfter the addition
2. stirringthe mixture was agitated at 50° C. for seven hours
3. customReaction solution
4. customAfter an aqueous layer was separated
5. customremoved
6. addition1 L of acetone was added
7. customSolid thus precipitated
8. filtrationwas collected by filtration
9. customdried under reduced pressure