反应详情

To a solution of 1-(1-azidocyclohexyl)-3-(methyloxy)benzene (D315) (2.78 g, 12.0 mmol, 1 equiv) in THF (20 ml) at room temperature was added LiAlH4 (1M in THF, 36 ml, 36 mmol, 3 equiv) and the resulting mixture was stirred at this temperature for 4 h. The mixture was then carefully quenched with a 1N aqueous NaOH solution (6 ml, 60 mmol, 1 equiv) then H2O. The mixture was filtered through a pad of celite then acidified with a 2N aqueous HCl solution (50 ml). The two layers were separated and the pH of the aqueous phase adjusted to 9 using a 2N aqueous NaOH solution. The aqueous phase was extracted three times with Et2O and the combined organic phase were dried over MgSO4 then concentrated in vacuo to give {1-[3-(methyloxy)phenyl]cyclohexyl}amine (F41) (1.55 g, 63%) as a clear oil which was used in the next step without further purification. [M+H]+=189.0, RT=1.90 min.

1. filtrationThe mixture was filtered through a pad of celite
2. customThe two layers were separated
3. extractionThe aqueous phase was extracted three times with Et2O
4. dry with materialthe combined organic phase were dried over MgSO4
5. concentrationthen concentrated in vacuo