Methyl iodide → HCID 66618095, Verbindung

To a solution of tert-butyl(1S)-2,3-dihydro-1H-inden-1-ylcarbamate (1.82 g, 7.80 mmol) in THF (50.0 mL) under an atmosphere of argon at 0° C. was added 60% sodium hydride in mineral oil (968 mg, 24.2 mmol) and the suspension was allowed to warm to rt and stir for 30 min. Iodomethane (1.52 mL, 24.2 mmol) was added and the mixture was stirred overnight. The reaction was then quenched via addition of saturated ammonium chloride solution (10.0 mL) and was concentrated in vacuo. The mixture was then partitioned between water (20 mL) and DCM (50 mL) and the aqueous layer was extracted with DCM (3×50 mL). The combined organic layers were dried over MgSO4, filtered, concentrated in vacuo and purified by silica gel chromatography eluting with a gradient of 0 to 20% EtOAc in hexanes to afford the title compound as a clear, colorless oil (1.84 g, 95%). LC/MS: Rt=2.21 min, ES+ 248 (AA standard).