2-((Tert-butyldimethylsilyl)oxy)acetaldehyde → (NE,S)-N-[2-[tert-butyl(dimethyl)silyl]oxyethylidene]-2-methylpropane-2-sulfinamide

Participants

Reaction Steps

To a solution of 2-((tert-butyldimethylsilyl)oxy)acetaldehyde (Aldrich, 15 g, 86.05 mmol) in DCM (200 mL) at room temperature was added copper(II) sulfate (41.2 g, 258.16 mmol) and (S)-2-methylpropane-2-sulfinamide (Aldrich, 15.64 g, 129.08 mmol). The reaction mixture was stirred overnight at room temperature, then filtered through celite, washed with DCM and concentrated to afford an oil. Silica gel chromatography (0%-25% ethyl acetate/hexanes) afforded the title compound (14.73 g, 61.7%) as a colorless oil.

Provenance & Evidence