Hydrochloric Acid → HCID 178420402, compound

Participants

Reaction Conditions

Reaction Steps

1.67 g (3.92 mmol) of 1-[3-(4-cyanophenoxy)propyl]-4diphenylmethoxypiperidine dissolved in 15 ml of dimethylformamide was added 1.26 g (23.6 mmol) of ammonium chloride, and the mixture was stirred at 45° C. for 15 minutes. Subsequently, 1.02 g (15.7 mmol) of sodium azide was added to the mixture, and the mixture was stirred at 100° C. to 110° C. for 12 hours. After completion of the reaction, the reaction mixture was allowed to cool to 70° C., and a solution of 1.6 ml of conc. hydrochloric acid diluted with 50 ml of water was added. After the mixture was allowed to cool to 35° C., 10 ml of n-hexane and 1.35 g (19.6 mmol) of sodium nitrite in 5 ml of water were added to the mixture to give vigorous gas evolution and then an amber viscous product was liberated. After the supernatant was removed by decantation, 50 ml of ethyl acetate was added to the residual amber viscous product, and the mixture was shaken vigorously. The precipitated crystals were filteref off and washed sufficiently with ethyl acetate to obtain 1.20 g (yield: 65%) of 1-{3-[4-(1,2,3,4-tetrazol-5-yl)phenoxy]propyl)-4-diphenylmethoxypiperidine as pale brown crystals.

Provenance & Evidence