Methyl iodide → HCID 21964391, compound

Participants

Reaction Steps

A solution of 1-benzyl-3-(3-chlorophenyl)-4-piperidone (75 mmol) in anhydrous THF (250 mL) is cooled to −30° C., then treated with a solution of freshly prepared lithium diisopropylamide (2.0 M in THF/heptane, 45 mL). After stirring for 15 minutes, a solution of methyl iodide (80 mmol) in THF (40 mL) is rapidly added. The mixture is stirred for 1 hour at −30° C., warmed quickly to room temperature, and quenched with a saturated aqueous solution of ammonium chloride. The organic layer is collected, washed with water, brine, and dried (MgSO4). After filtering, the filtrate is concentrated in vacuo to afford the desired intermediate.

Provenance & Evidence