Methyl iodide → HCID 20145193, compound

Participants

Reaction Steps

A solution of 5.0 gm (11.4 m mol) of ethyl 4-[(1-(4-hydroxy-2-piperidino-phenyl)-1-butyl)-aminocarbonylmethyl]-benzoate in 45 ml of absolute dimethylformamide was added dropwise, under stirring, at ambient temperature, to 548 mg (11.4 m mol) of sodium hydride (50% in oil) in 10 ml of absolute dimethylformamide. The mixture was stirred for a further 15 minutes, and then a solution of 0.71 ml (11.4 m mol) of methyliodide in 8 ml of absolute dimethylformamide was slowly added thereto dropwise. The mixture was stirred for a further two and one-half hours at ambient temperature, evaporated in vacuo, and distributed between water and ether. The ether phase was dried, filtered, and concentrated by evaporation in vacuo. The evaporation residue was purified by column chromatography on silica gel [toluene/acetone (20:1)].

Provenance & Evidence