反应详情

温度

80 °C

A mixture of 4,10-dioxa-tricyclo[5.2.1.02,6]decane-3,5-dione (8, 3.7 g, 22.0 mmol) and benzyl alcohol (9) (4.5 mL, 44.0 mmol) in dioxane was heated at 80° C. for 16 h. Cooled to room temperature and evaporated to remove solvent. Residue obtained was triturated with diisopropyl ether (20 mL) to give white solid of 10 which was filtered, washed with diisopropyl ether (10 mL) and dried. Yield: 3.6 g (59%). 1H NMR (300 MHz, CDCl3) δ 1.45-1.55 (m, 2H); 1.78-1.81 (m, 2H); 3.05 (s, 2H); 4.91 (d, J=9.4 Hz, 2H); 5.02 (d, J=6.3 Hz, 1H); 5.13 (d, J=6.3 Hz, 1H); 7.28-7.40 (m, 5H).

1. temperatureCooled to room temperature
2. customevaporated
3. customto remove solvent
4. customResidue obtained
5. customwas triturated with diisopropyl ether (20 mL)