HCID 86654777, compound → HCID 67111134, compound

Participants

Reaction Steps

To an ice-cold suspension of 3-(tert-butyl-dimethyl-silanyloxy)-N-methoxy-N-methyl-5-trifluoromethyl-benzamide (500 mg, 1.37 mmol) in THF (5 mL) was added dropwise 3.0M CH3MgCl (687 mL, 2.06 mmol) at 0° C. The mixture was stirred for 3 hours at room temperature, and then diluted with Et2O. The reaction mixture was washed with saturated ammonium chloride, water and brine, dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure. The crude residue was purified by column chromatography to give 1-[3-(tert-butyl-dimethyl-silanyloxy)-5-trifluoromethyl-phenyl]-ethanone (436 g, 99%).

Provenance & Evidence