Sodium hydride → HCID 70984334, compound

Participants

Reaction Steps

Sodium hydride (60% oil dispersion, 0.176 g) was added to a stirred solution of 4-ethyl-piperazin-2-one (Intermediate 176, 0.512 g) in anhydrous THF (10 mL) and the mixture was stirred at room temperature for 10 minutes. 3-Fluorobenzyl bromide (0.827 g) was added and stirring was continued for 2 hours. The solution was diluted with water and ethyl acetate and the organic layer was dried (Na2SO4) and filtered. The filtrate was concentrated in vacuo and the residue was purified by chromatography on silica, eluting with a mixture of methanol and DCM with a gradient of 0-5% to give 4-ethyl-1-(3-fluorobenzyl)piperazin-2-one (0.595 g) as a colourless oil.

Provenance & Evidence