Methanesulfonyl chloride → HCID 18675452, compound

Participants

Reaction Steps

To a solution of 3-(3-chlorophenyl)indoline (3.88 g, 16.9 mmol) and DIEA (2.40 g, 18.6 mmol) in DCM (40 mL) was added dropwise methanesulfonyl chloride (2.13 g, 18.6 mmol) at about 0° C. The mixture was stirred for about 1.5 hours. The solution was diluted with DCM and washed with saturated NaHCO3 solution (2 times), 1N HCl aqueous solution (2 times) and brine (2 times) and dried over anhydrous MgSO4, filtered and concentrated in vacuo. The crude product was purified by column chromatography on silica, eluting with EtOAc/hexane 1:4. The title compound was obtained as an oil Yield: 4.40 9, 85%. Rf=0.41, silica, EtOAc/hexane 1:2. 1H NMR (300 MHz, CDCl3) δ:7.52 (d, 1H), 7.24-7.34 (m, 3H), 7.20 (s, 1H), 7.02-7.14 (m, 3H), 4.59 (t, 1H), 4.38 (t, 1H), 3.87 (dd, 1H), 2.92 (s, 3H).

Provenance & Evidence