An oven-dried round-bottom flask, equipped with a magnetic stirring bar was charged with 1.0 M solution of appropriate α-hydroxy amide 2a (1.0 equiv., 0.1 mmol, 27.1 mg) in CH2Cl2. This solution was treated with Et3N (2.0 equiv., 0.4 mmol, 28 µL) and methanesulfonyl chloride (2.0 equiv., 0.4 mmol, 22.9 mg) at room temperature for 12 h or until complete as judged by TLC analysis. The reaction mixture was quenched with pH = 7 buffer solution, diluted with DCM and transferred to a separatory funnel. The organic layer was extracted and washed with saturated NaHCO3, dried over MgSO4 and concentrated in vacuo to afford α-methanesulfonyloxy Nphenylamides cleanly without the need for flash chromatography.