Hydrochloric Acid → HCID 20380005, compound

Participants

Reaction Steps

A mixture of 17.7 g (0.038 mole) of 4'-fluoro-4-[4-(α-hydroxy-α-phenylbenzyl)piperidino]butyrophenone hydrochloride, 200 ml of 37% HCl, and 200 ml of isopropyl alcohol was heated on a steam bath for 4 hours. The solvent and excess acid were removed at reduced pressure. The remaining residue was treated with benzene and ethanol and heated to remove excess acid. The excess benzene and ethanol were removed, and the residue was dissolved in hot butanone to which ether was added. Upon cooling a solid formed which was recrystallized from ethyl acetate to give the desired product M.P. 190°-191° C.

Provenance & Evidence