反应详情

2.0 g of LiAlH4 are added to a solution of 3.3 g (10 mmol) of 1-[4-(4-phenyl-1,2,3,6-tetrahydro-1-pyridyl)-3-oxobutyl]-1H-pyrazole in 25 ml of THF. The resulting mixture is refluxed for 2 hours. The excess LiAlH4 is destroyed by addition of concentrated NaOH and water. The inorganic salts are filtered off and the THF is evaporated under vacuum, giving 2.6 g (8.2 mmol) of 1-[4-(4-phenyl-1,2,3,6-tetrahydro-1-pyridyl)butyl]-1H-pyrazole.

1. temperatureThe resulting mixture is refluxed for 2 hours
2. customThe excess LiAlH4 is destroyed by addition of concentrated NaOH and water
3. filtrationThe inorganic salts are filtered off
4. customthe THF is evaporated under vacuum