Hydrochloric Acid → HCID 9979667, compound

Participants

Reaction Steps

Under argon atmosphere, 3,5-bis(trifluoromethyl)isocyanate (255 mg, 1.0 mmol) was dissolved in tetrahydrofuran (5 mL). A solution of 6-chloro-oxindole (184 mg, 1.1 mmol) in tetrahydrofuran (5 ml) and triethylamine (0.3 mL) were added, and the mixture was stirred at room temperature for 4 hours. The reaction mixture was poured into diluted hydrochloric acid and extracted with ethyl acetate. After the organic layer was washed with water and brine, dried over anhydrous magnesium sulfate, the residue obtained by evaporation under reduced pressure was purified by chromatography on silica gel (n-hexane:ethyl acetate=4:1) to give the title compound (172.2 mg, 40.7%) as a pink solid.

Provenance & Evidence