N-methyl-2-pyrrolidone → HCID 90052222, compound

Participants

Reaction Conditions

Reaction Steps

To 2,2,3-trifluoro-3-(3-nitrophenyl)propyl trifluoromethanesulfonate (C32, 709 mg) and potassium phthalimide (1.07 g), N-methylpyrrolidone (4 mL) was added at room temperature, and the mixture was stirred at 80° C. for 3 hours. The reaction mixture was cooled to room temperature, and then ethyl acetate and saturated aqueous sodium hydrogencarbonate were added to the mixture. The organic layer was separated, washed successively with water and saturated aqueous sodium chloride, and then dried over anhydrous sodium sulfate, and the solvent was evaporated under reduced pressure. The obtained residue was purified by silica gel column chromatography (eluent, 100 to 30% hexane in ethyl acetate) to obtain 2-(2,2,3-trifluoro-3-(3-nitrophenyl)propyl)isoindoline-1,3-dione (C33, 531 mg).

Provenance & Evidence