反应详情

A solution of lithium aluminum hydride (30 mmole) in tetrahydrofuran (120 ml) was heated under reflux. A solution of N-[2-(4-methoxyphenyl)-1-methylethyl]-N-ethyl-(piperidin-4-ylcarbonyl)amine (7.8 grams, 25.6 mmole) in tetrahydrofuran (40 ml) was added dropwise. After 30 minutes excess water was added at 22° C. The mixture was filtered and the filtrate was concentrated under reduced pressure to give N-[2-(4-methoxyphenyl)-1-methylethyl]-N-ethyl-(piperidin-4-ylmethyl)amine, which was isolated as the hydrochloride salt from acetonitrile (7.0 grams, 75%), m.p. 144-146° C., M+H 405.

1. temperatureunder reflux
2. filtrationThe mixture was filtered
3. concentrationthe filtrate was concentrated under reduced pressure