反应详情

To a solution of 4-phenyl-4-piperidinecarboxylic acid 4-toluene-sulfonate (2.0 g, 5.3 mmol) in dry tetrahydrofuran (10 ml) was added 1 M lithium aluminum hydride solution in tetrahydrofuran at 0° C. The reaction mixture was heated at reflux for 90 min. After cooling to 0° C. water (0.4 ml), 2 M aqueous sodium hydroxide solution (0.6 ml) and water (0.8 ml) were added consecutively. The white suspension was stirred for 10 min and diluted with tetrahydrofuran (40 ml). After addition of anhydrous sodium sulfate (18 g) the suspension was stirred for further 10 min. The precipitate was removed by filtration and the filtrate was concentrated in vacuo to give the crude title compound (0.65 g, 64%) as white solid.

1. temperatureThe reaction mixture was heated
2. temperatureat reflux for 90 min
3. additionwere added consecutively
4. stirringwas stirred for further 10 min
5. customThe precipitate was removed by filtration
6. concentrationthe filtrate was concentrated in vacuo