反应详情

温度

0 °C

A solution of 6-chloro-3-isopropyl-1H-indene (6.45 g) in anhydrous tetrahydrofuran (15 ml) was added to a solution of borane:tetrahydrofuran complex (84.3 ml of 1.0M solution) at 0° C. under nitrogen atmosphere. The temperature of the reaction solution was kept below 5° C. during the addition. After the addition, the solution was further stirred at 0° C. for 0.5 hr and at room temperature for 2 hr. The solution was cooled to 0° C. and water (100 ml) was added, followed by 6N NaOH solution (100 ml) and hydrogen peroxide (100 ml, 30% aqueous solution). The mixture was stirred for one hour, then potassium carbonate (100 g) was added, ad the whole mixture was extracted with diethyl ether (3×150 ml). The combined ether extracts was washed with water, dried (MgSO4) and condensed to give an oil. This oil was purified by flash chromatography to give trans-5-chloro-1-isopropyl-2-indanol (6.67 g).

1. customat 0° C.
2. additionThe temperature of the reaction solution was kept below 5° C. during the addition
3. additionAfter the addition
4. temperatureThe solution was cooled to 0° C.
5. stirringThe mixture was stirred for one hour
6. extractionad the whole mixture was extracted with diethyl ether (3×150 ml)
7. washThe combined ether extracts was washed with water
8. customdried
9. custom(MgSO4) and condensed
10. customto give an oil
11. customThis oil was purified by flash chromatography