Methanesulfonyl chloride → N-(3-ethynylphenyl)methanesulfonamide

Participants

Reaction Steps

To a solution of 3-ethynyl aniline (1.05 mL, 10.0 mmol) in pyridine (5 mL) was added methanesulfonyl chloride (857 μL, 1.10 eq.) at a temperature of 0° C. The resulting mixture was stirred overnight at room temperature and was then evaporated. The residue was treated with 2 N aq. HCl (25 mL) and subsequently extracted with ethyl acetate (2×30 mL). The combined organic layers were dried over MgSO4 and evaporated to give the desired methanesulfonamide in quantitative yield. It was used without further purification.

Provenance & Evidence