反应详情

温度

25 °C

To a stirred mixture of lithium aluminum hydride (0.152 g, 4.00 mmol,2 eq) in anhydrous tetrahydrofuran (10 mL) at 0° C. was added rapidly a solution of the 3-(N-benzyloxycarbonylpyrrolidin-2-ylmethyl)-1H-indole or the 3-(N-benzyloxycarbonylpiperid-2-ylmethyl)-1H-indole (2.00 mmol) in anhydrous tetrahydrofuran (5 mL). The resulting mixture is heated at reflux under a nitrogen atmosphere for 3 hours. The reaction mixture is cooled, and water (0.25 mL), 15% aqueous sodium hydroxide (0.25 mL), and then more water (0.75 mL) were added sequentially. The resulting mixture was stirred at 25° C. for 30 minutes, filtered, and the filtrate was evaporated under reduced pressure. The residue was column chromatographed using silica gel (approximately 50 g) and elution with a solution methylene chloride: methanol: ammonium hydroxide [9:1:0.1] or other appropriate solvent system to afford the corresponding 3-(N-methylpyrrolidin-2-ylmethyl)-1H-indole or 3-(N-methylpiperid-2-ylmethyl)-1H-indole.

1. temperatureThe resulting mixture is heated
2. temperatureat reflux under a nitrogen atmosphere for 3 hours
3. temperatureThe reaction mixture is cooled
4. filtrationfiltered
5. customthe filtrate was evaporated under reduced pressure
6. customchromatographed
7. washsilica gel (approximately 50 g) and elution with a solution methylene chloride