Chlorotrimethylsilane → HCID 66594479, compound

Participants

Reaction Steps

Chlorotrimethylsilane (96 g, 884 mmol) was added to a solution of lithium borohydride (9.6 g, 441 mmol) in tetrahydrofuran (500 ml) and the solution was stirred for one hour at room temperature. A solution of 4-((2S)-4-benzyl-5-oxo-morpholin-2-yl)phenyl methanesulfonate (79.8 g, 221 mmol) in tetrahydrofuran (200 ml) was added to the solution and stirred at room temperature for one hour. After careful addition of methanol (60 ml) under ice-cooling, the solvent was removed under reduced pressure. Potassium hydroxide (145 g, 2.2 mol) was added to a solution of the residue in ethanol (300 ml) and water (300 ml) and the solution was stirred at 80° C. for 2 hours. The solvents were removed under reduced pressure and the residue was extracted with ethyl acetate and dried over anhydrous magnesium sulfate. Removal of the solvent yielded (2S)-4-benzyl-2-(4-hydroxyphenyl)morpholine (39.8 g, 67%) as white crystals.

Provenance & Evidence