Diethylamine → 1H-indole-7-carboxylic acid diethylamide

Participants

Reaction Steps

A solution of 1H-indole-7-carboxylic acid (0.48 g, 3 mmol), diethylamine (0.93 mL, 9 mmol), 1-ethyl-3-(3-dimethylaminopropyl)-carbodiimide hydrochloride (1.74 g, 9 mmol), 1-hydroxybenzotriazole (1.23 g, 9 mmol), triethylamine (1.26 mL, 12 mmol) in dimethylformamide (30 mL) is stirred at room temperature for 4 hours. The mixture is diluted with ethyl acetate, washed with 1N HCl, water, a saturated aqueous sodium hydrogen carbonate solution, water, and a saturated brine, dried over magnesium sulfate, and concentrated to give the desired 1H-indole-7-carboxylic acid diethylamide (0.64 g, yield: 99%).

Provenance & Evidence