Methyl iodide → HCID 19016513, compound

Participants

Reaction Steps

To a suspension of 80% sodium hydride (0.06 g; 2 mM) in dimethylformamide (5 ml), was added the monomethyl urea (E9) (0.5 g; 1.79 mM). After stirring at room temperature for 0.5 h, methyl iodide (0.12 ml; 1.93 mM) was added dropwise. Stirring was continued at room temperature for 1 h, then heated at 50° C. for 1 h. The reaction mixture was cooled in ice, then quenched with water. The mixture was then extracted with dichloromethane, washed with water, dried over sodium sulphate and evaporated to give the crude product (0.59 g). Chromatography on silica using dichloromethane as eluant afforded the title compound (0.31 g; 60%) which was recrystallised from cyclohexane to give a white solid (160 mg) m.p. 91°-92.5° C.

Provenance & Evidence