Ammonium Chloride → 5-Benzyloxy-2-(4-benzyloxyphenyl)-3-ethyl-3-hydroxyisoindolin-1-one

Participants

Reaction Conditions

Reaction Steps

To a cooled (3° C.) solution containing 5-benzyloxy-2-(4-benzyloxyphenyl)-isoindoline-1,3-dione (870 mg) in THF (25 mL) under nitrogen atmosphere was added ethylmagnesium bromide (4 mL, 3M solution in THF) dropwise. The mixture was stirred at 3° C. for 15 min then allowed to warm to room temperature for 2 h. The mixture was cooled, poured into saturated ammonium chloride and extracted with ethyl acetate. The organic layer was washed with brine. Evaporation of the solvent yielded the title compound (900 mg) as a tan solid. MS: 466 (MH+).

Provenance & Evidence