Methanesulfonyl chloride → HCID 24728873, compound

Participants

Reaction Steps

To an ice-cold (0-5° C.) solution of the product from Step 2 (5.27 g, 27.3 mmol) and TEA (8.27 g, 81.9 mmol) in dichloromethane (50 mL), was added methanesulfonyl chloride (6.87 g, 60.0 mmol) over a period of 30 minutes. After stirring at RT overnight, the reaction mixture was washed with water. The organic layer was dried (sodium sulfate), filtered, and concentrated to give the crude product which was purified over a silica column (5:95 EtOAc/hexane) to obtain pure product (6.44 g, 67.6%). 1H NMR (400 MHz, CDCl3) δ 7.32-7.26 (5H, m), 5.14 (2H, m), 3.65 (2H, s), 3.15-3.08 (2H, m), 3.08 (6H, s), 2.76 (2H, dd). MS m/z 350 (MH+).

Provenance & Evidence