Ethyl Acetate → HCID 10193928, compound

Participants

Reaction Conditions

Reaction Steps

To a solution of crude 3-mercapto-5,6,7,8-tetrahydronaphthalene-2-carbonitrile (121 mg, 0.64 mmol) and 2,2′,4′-trichloroacetophenone (143 mg, 0.64 mmol, 1.0 eq) in anhydrous N,N-dimethylformamide (5 mL) was added powdered potassium hydroxide (177 mg, 1.28 mmol, 2.0 eq). The reaction mixture was stirred under argon at 80° C. for 16 h. The brown reaction mixture was cooled and poured into ethyl acetate and water. The organic layer was washed with water, brine, and dried over magnesium sulfate. The solvent was removed at reduced pressure, and the crude product was purified on the MPLC (Biotage), eluted with 30% ethyl acetate-hexane. Trituration from hexane afforded 92.4 mg (38.4%) of the benzothiophene. 1H-NMR (Acetone-d6) δ 7.88 (broad, s, 3H), 7.62 (d, J=1.5 Hz, 1H), 7.53 (m, 2 H), 7.42 (s, 1H), 2.85 (m, 4H), 1.83 (m, 4H); MS ES (MH+=376/378); Rf=0.60 (30% ethyl acetate-hexane).

Provenance & Evidence