Ethyl Acetate → N-Methyl-N-prop-2-yn-1-ylmethanesulfonamide

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Reaction Steps

Methanesulfonylchloride (1.12 mL, 14.5 mmol) was added to a stirred solution of N-methylpropargylamine (1.22 mL, 14.5 mmol) and dimethylaminopyridine (35 mg, 0.30 mmol) in pyridine (10 mL) at room temperature. After aging for approximately 15 h, the reaction mixture was poured into ethyl acetate and washed successively with 1N HCl and brine. The organic phase was dried (Na2SO4), filtered and concentrated in vacuo, to afford the title compound (i-4), which was used without further purification.

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