Iodoethane → 1-Ethyl-7-fluoroindoline-2,3-dione

Participants

Reaction Steps

7-Fluoro-1H-indole-2,3-dione (prepared according to the method of Gassman as described in U.S. Pat. No. 4,188,325 (4.00 g, 24.2 mmol), iodoethane (3.87 ml, 48.5 mmol) and potassium carbonate (6.61 g, 48.5 mmol) in DMF (20 ml) are stirred at room temperature for 20 hours. The reaction mixture is diluted with cold water and the resulting precipitate filtered and dried to give the title compound as an orange solid. HPLC r.t. 4.48 min; MS for C10H8FNO2 m/z 193.9 (M+H)+.

Provenance & Evidence