反应详情

To a mixture of 3,4-methylenedioxy-1-bromobenzene (5.00 g, 24.87 mmol) and 1-adamantanol (3.79 g, 24.87 mmol) in CH2Cl2 (50 mL) under an atmosphere of argon was added sulfuric acid (2.0 mL) at room temperature. After stirring for 3 days the resulting mixture was diluted with CH2Cl2 and washed with water. The aqueous layer was extracted with CH2Cl2 and the combined organics were washed successively with water, brine and dried (MgSO4). The mixture was filter, evaporated and the residue purified on silica gel (hexane) to give 4.41 g of 3-(1-adamantyl)-4,5-methylenedioxy-1-bromobenzene (53%) as a white solid, mp 135.5–136.0° C.

1. washwashed with water
2. extractionThe aqueous layer was extracted with CH2Cl2
3. washthe combined organics were washed successively with water, brine
4. dry with materialdried (MgSO4)
5. filtrationThe mixture was filter
6. customevaporated
7. customthe residue purified on silica gel (hexane)