Methyl iodide → HCID 68289653, compound

Participants

Reaction Steps

A solution of sodium ethoxide (8.76 mL, 23.5 mmol, 21 wt % ethanol solution) in ethanol (10 mL) was cooled to 0° C. under argon atmosphere, and thereto was added dropwise a solution of 3-bromo-2-(cyanomethyl)benzonitrile (4.33 g, 19.6 mmol) and iodomethane (1.46 mL, 23.5 mmol) in tetrahydrofuran (10 mL) over 30 minutes, and then the mixture was stirred at room temperature for 6.5 hours. The mixture was concentrated under reduced pressure, and then the residue was neutralized by 2 mol/L hydrochloric acid, and extracted with ethyl acetate three times. The organic layer was combined, washed with saturated brine, dried over anhydrous sodium sulfate, and then concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (ethyl acetate/hexane=10%→40%) to give 3-bromo-2-(1-cyanoethyl)benzonitrile (3.11 g, 67%) as a yellow viscous material.

Provenance & Evidence