Phenethyl bromide → HCID 13536280, compound

Participants

Reaction Steps

To a solution of 0.6 g of 5-fluoro-N-(4-piperidyl)indole-3-carboxamide in a mixture of 50 ml of toluene and 10 ml of dimethylformamide were added 0.43 g of 2-phenylethylbromide and 1 g of potassium carbonate, and the whole mixture was stirred while heating and refluxing for 7 hours. After cooling, to the reaction mixture was added 50 ml of ice-cold water and stirred for 1 hour. The precipitated crystals were filtered, and washed with water and ethyl acetate. An organic layer was separated from the filtrate, dried over magnesium sufate and concentrated under reduced pressure. The residue was treated with a small amount of ethyl acetate to crystallize, and the crystals were filtered and combined with the crystals obtained as above. All of the crystals were recrystallized from methanol to give 5-fluoro-N-[1-(2-phenylethyl)-4-piperidyl]indole-3-carboxamide, melting at 238°-240° C.

Provenance & Evidence