反应详情

To a solution of 2-(1H-indol-4-yloxy)-acetonitrile (0.9 g, 5.2 mmol) in anhydrous ethyl ether (30 ml) was added lithium aluminum hydride (95%, 0.21 g, 5.2 mmol) at room temperature. The reaction was allowed to reflux for 2 hours, another equivalent of lithium aluminum hydride (0.21 g, 5.2 mmol) was added. The reaction was allowed to reflux for another 2 hours and then was quenched with 1N sodium hydroxide and water. The solid was removed by filtration and the filtrate was concentrated and dissolved in methanol and water. To a above mixture was added 2N hydrochloric acid until pH<3 and then extracted with ethyl ether. To the above aqueous layer was added sodium hydroxide until pH>9, the mixture was extracted with isopropanol-methylene (1:3). The combined organic layers were washed with brine, and dried over anhydrous sodium sulfate. The solvent was removed under vacuum to afford 0.3 g (33%) of product as a brown solid. mp: 123-125° C.; MS EI m/e 177 (M+)

1. temperatureto reflux for 2 hours
2. temperatureto reflux for another 2 hours
3. customwas quenched with 1N sodium hydroxide and water
4. customThe solid was removed by filtration
5. concentrationthe filtrate was concentrated
6. dissolutiondissolved in methanol
7. additionTo a above mixture was added 2N hydrochloric acid until pH<3
8. extractionextracted with ethyl ether
9. additionTo the above aqueous layer was added sodium hydroxide until pH>9
10. extractionthe mixture was extracted with isopropanol-methylene (1:3)
11. washThe combined organic layers were washed with brine
12. dry with materialdried over anhydrous sodium sulfate
13. customThe solvent was removed under vacuum