Triethylamine → HCID 59971446, compound

Participants

Reaction Steps

A solution of (Z)-4-(3-aminophenyl)-1,3-dihydro-3-[(1H-pyrrol-2-yl)methylene]-2H-indol-2-one hydrochloride (40 mg, 0.118 mmol) (from Example 5 supra) and Et3N (33 μL , 0.237 mmol) in 3 mL of chloroform was treated with 3-cyanobenzoyl chloride (22 mg, 0.130 mmol) (Aldrich), and the resulting reaction mixture was stirred at room temperature for 15 h. The reaction mixture was concentrated in vacuo to remove chloroform. The yellow residue was suspended in distilled water, and the resulting solid was collected by suction filtration to provide pure (Z)-N-[3-[2,3-dihydro-2-oxo-3-[(1H-pyrrol-2-yl)methylene]-1H-indol-4-yl]-phenyl]-3-cyanobenzamide (yield: 41 mg, 81%) as a yellow solid (mp 250-251° C.).

Provenance & Evidence