N-[2-(1H-indol-3-yl)ethyl]methanesulfonamide

Conditions: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A round bottom flask charged with tryptamine (2.0 g, 12.5 mmol) in DCM (20 mL) was added Et3N (3.5 mL, 25 mmol) under an atmosphere of Ar and cooled to 0° C. The solution was then added mesyl chloride (1.5 mL, 18.7 mmol) and the resulting reaction mixture was stir to RT for 2 h. The reaction was quenched with water (20 mL) and extracted with DCM (3×20 mL). The combined organic extracts were washed with brine (30 mL), dried over Na2SO4 and concentrated in vacuo. The desired product was purified via automated column chromatography method 2 (2.1 g, 70%) and isolated as a brown oil. 1H NMR (400 MHz, MeOD) δ 7.55 (d, J=7.6 Hz, 1H), 7.33 (d, J=8.0 Hz, 1H), 7.08 (m, 2H), 7.01 (td, J=8.0, 0.8 Hz, 1H), 3.35 (t, J=7.2 Hz, 2H), 2.99 (t, J=7.2 Hz, 2H), 2.76 (s, 3H). 13C NMR (100 MHz, MeOD) δ 138.28, 128.77, 123.91, 122.54, 119.85, 119.34, 112.93, 112.43, 45.09, 40.02, 27.60. The reaction was quenched with water (20 mL) extracted with DCM (3×20 mL) The combined organic extracts were washed with brine (30 mL) dried over Na2SO4 concentrated in vacuo The desired product was purified isolated as a brown oil