Acetic Acid → HCID 69562716, compound

Participants

Reaction Conditions

Reaction Steps

A stirred solution of 4-[4-hydroxy-6-(5-methanesulfonyl-2,3-dihydrobenzofuran-7-yl)-6-methyl-4-trifluoromethylhept-1-ynyl]-3-methyl-5-nitrobenzonitrile. (165 mg, 0.3 mmol) in 6 mL of absolute ethanol was treated with 4 mL of glacial acetic acid and iron powder (335 mg, 6 mmol). The resulting mixture was heated at 90° C. for 30 minutes, cooled to room temperature, diluted with 200 mL of dichloromethane, and filtered through a pad of CELITE® filter aid. The filtrate was washed with three 50 mL portions of saturated aqueous sodium carbonate solution and two 25 mL portions of brine, dried over sodium sulfate, filtered, and concentrated in vacuo to give 140 mg of 3-amino-4-[4-hydroxy-6-(5-methanesulfonyl-2,3-dihydrobenzofuran-7-yl)-6-methyl-4-trifluoromethylhept-1-ynyl]-5-methylbenzonitrile as a light brownish oil (90% yield).

Provenance & Evidence