HCID 18786878, compound → HCID 18786876, compound

Participants

Reaction Steps

To a slurry of iron powder (5.3 g) in 5% aqueous acetic acid (30 mL) was added dropwise a solution of the title compound of step B (2.8 g, 8.1 mmol) in a mixture of concentrated acetic acid (25 mL) and ethyl acetate (25 mL) at room temperature. The reaction was stirred at room temperature for 30 minutes, diluted with excess ethyl acetate, filtered through Celite®, and washed with water. The aqueous phase was extracted with ethyl acetate and the combined organic layers were washed with saturated aqueous sodium bicarbonate solution and water. The organic layers were then dried over magnesium sulfate and concentrated under reduced pressure. The title compound of Step C was isolated by flash chromatography as a foam (1.59 g). 1H NMR (CDCl3) δ 7.15 (d, 1H), 6.65 (d, 1H), 3.95 (br s, 2H), 3.4 (s, 3H), 3.1 (s, 6H).

Provenance & Evidence