反应详情

温度

0 °C

Step AA (1): To a solution of 6-methoxy-2,3-dihydro-1H-inden-1-one (24 g) in methanol (150 mL) and THF (50 mL) at 0° C. was added sodium borohydride (5.6 g), and the resulting suspension was stirred at 0° C. for 1 h and rt for 30 min. Solvents were evaporated, and water was added. The aqueous solution was extracted with EtOAc (×4), and the combined organic layers were washed with brine, dried over anhydrous sodium sulfate, and filtered. The filtrate was evaporated in vacuo to give methyl 6-methoxy-2,3-dihydro-1H-inden-1-ol as a colorless oil (24.3 g), which was carried forward without purification. 1H NMR (400 MHz, CDCl3): 7.12 (1H, d), 6.95 (1H, d), 6.81 (1H, dd), 5.19 (1H, br. S), 3.79 (3H, s), 2.95 (1H, m), 2.74 (1H, m), 2.50 (1H, m), 1.94 (1H, m).

1. customSolvents were evaporated
2. additionwater was added
3. extractionThe aqueous solution was extracted with EtOAc (×4)
4. washthe combined organic layers were washed with brine
5. dry with materialdried over anhydrous sodium sulfate
6. filtrationfiltered
7. customThe filtrate was evaporated in vacuo